Product Overview (1) The light intensity transmitter, with imported detection probes, features rapid and sensitive response as well as strong anti-interference ability. Through our company's unique compensation algorithm and multi-stage standard calibration, it also boasts long service life, high precision, high repeatability and high stability. (2) This product follows the standard ModBus RTU protocol and the address and baud rate can be flexibly modified using the upper computer software. This product, when used in conjunction with the 485 to network conversion module, can transmit data to the cloud server. Functional Features (1) Original imported probe, long service life, high measurement accuracy, up to ±7%FS, power less than 1 watt. (2) It adopts imported RS485 chips to provide multiple protections for the interface, including surge prevention, line connection error prevention, and hardware watchdog design, ensuring stable operation of the equipment and avoiding system crashes. (3)RS485 interface, standard Modbus RTU protocol, can be transferred to 485-to-4G/Ethernet modules. (4) Provide upper computer debugging software. Users can modify the device address (range 0 to 255), baud rate (range 4800bps to 9600bps), and verification method by themselves. Moreover, these Settings can be saved after power failure. Working power supply This product is powered by wide-voltage DC, with a rated voltage of DC 12V-24V. The rated current is less than 0.1A and the power is less than 1 watt. Customers generally use 12V or 24V DC power supplies. In scenarios with long power supply lines, considering the voltage drop in the line, it is recommended to use a 24V DC power supply. Wiring method This product outputs a four-core cable with an outer diameter of approximately 5mm and a length of about 1 meter. Output RS485 Red: Power+; Black: Power-; Yellow: RS485 A; Green: RS485 B Output Analog Red: Power +; Black: Power -; Yellow: Signal +; Green: Signal-

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Conversion Module Analog 4-20mA 0-5V 0-10V to RS485 Modbus RTU Protocol 2 4 8 Channel Digital RS485 Transform Modules 2 Channels, Analog to RS485 Power supply: 7-30V DC Power consumption: 0.4W Number of input channels: 2 AD conversion resolution: 12 bits Collected signals: 4~20mA(compatible with 0~ 20mA), 0~5V, and 0~10V are optional Storage environment: -40℃ to 60℃ Communication interface: RS485 Communication protocol: ModBus-RTU protocol Acquisition accuracy: ±1% Address range: Factory default 0x01, set the range 0x01-0xFE Serial port parameters: Factory default baud rate 9600 N 8 1 Acquisition frequency: At a baud rate of 115,200, the fastest is 50HZ 4 channels, Analog to RS485 Power supply: 5-30V DC (12VDC is recommended) Power consumption: 0.3W Number of input channels: 4 AD conversion resolution: 12 bits Collected signals: 4~20mA(compatible with 0~ 20mA), 0~5V, and 0~10V are optional Storage environment: -40℃ to 60℃ Communication interface: RS485 Communication protocol: ModBus-RTU protocol Collection accuracy: ±0.1% Address range: Factory default 0x01, set the range 0x01-0xFD Serial port parameters: 1200-115200 BPS can be set, and the factory default baud rate is 9600 N 8 1 Acquisition frequency: 115,200 baud rate, maximum 100HZ(100 times per second) The baud rate of 9600 is as fast as 20HZ (20 times per second) 8 channels, Analog to RS485 Power supply: 7-30V DC (12VDC is recommended) Power consumption: Powered by DC12V, with 4 relays engaged to 2W. DC12V, when the 4-channel relay is disconnected, it is 0.3W. Input channel number: 8 analog quantity acquisition channels Output channel number: 4 relay switch quantities AD conversion resolution: 12 bits Collected signals: 4~20mA(compatible with 0~ 20mA), 0~5V, and 0~10V are optional Storage environment: -40℃ to 60℃ Communication interface: RS485 Communication protocol: ModBus-RTU protocol Collection accuracy: ±0.1% Address range: Factory default 0x01, set the range 0x01-0xFD Serial port parameters: 1200-115200 BPS can be set, and the factory default baud rate is 9600 N 8 1 Acquisition frequency: 115,200 baud rate, maximum 100HZ(100 times per second) The baud rate of 9600 is as fast as 20HZ (20 times per second)

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Rain and Snow Sensor Transmitter Weather Induction Detection Heating Anti-icing IP65 Output RS485 0-2V 0-5V 0-10V 4-20mA Technical Parameters Measurement parameter: Presence or absence of rain and snow Auxiliary function: Optional heating function Operating temperature:－30～70℃；Humidity:10～90%RH Storage temperature:－40～80℃； Humidity: 10～90%RH Output signal: A: Relay switch (Load capacity: AC 220V 1A; DC 24V 2A) B: Voltage signal (Choose one from 0～2V, 0～5V, 0～10V) C: 4～20mA (Current loop) D: RS485 (Standard Modbus-RTU protocol, default device address: 01) E: NPN output F: Combined output: e.g., A+C+D mentioned above Supply voltage: 12～24V DC Stabilization time: ＜1 second Response time: ＜1 second

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Digital Display Transmitter with Temperature Humidity Sensor Probe RS485 Analog 0-5V 0-10V 4-20mA Waterproof Temperature Sensors 1. Overview The relative humidity of air is the ratio of the absolute humidity in the air to the absolute humidity at saturation at the same temperature, which is a percentage. (that is, the percentage of the amount of water vapor in the air in a certain time and the amount of saturated water vapor at the temperature) is expressed by RH. The air temperature and humidity sensor adopts imported digital temperature and humidity sensor, which has been finely calibrated during production. The calibration data is stored in the internal memory. Relative humidity and temperature sensor has digital output, can be completely interrotating characteristics, do not need to go through the complex calibration, calibration process, measurement accuracy, linearity, repeatability, interrotating, consistency and other outstanding, it is suitable for environmental equipment matching, instrument equipment integration, general environmental testing. 2. Characteristics (1) High cost performance, wide voltage design. (2) Digital linearization correction, high precision, high stability. (3) full range temperature compensation, temperature and humidity measurement range is wide, the measurement range is optional. (4) Flexible installation, easy to use. (5) Small size, light weight, anti-vibration. (6) Can be made into a variety of shapes, convenient for different customer needs. 3. Scope of application Widely used in building automatic control, telecommunication room, paper making, warehousing logistics, shopping malls, hotels, cinemas, railway stations, museums, theaters, agricultural greenhouses, hospitals, meteorology, clean workshop and other areas that need to measure air temperature and humidity. 4. Product parameters Temperature range: standard -40~80℃, other temperature range can be customized Humidity range: 0 ~ 100%RH (non-condensation state) Accuracy: ±0.3℃ (0℃-65℃); ±3%RH (10%-90%) Repeatability: ±0.1℃; Plus or minus 0.1% RH Long-term stability: < 0.04℃/ year; < 0.5%RH/ year Output signal: A: voltage signal (0 ~ 2V, 0 ~ 5V, 0 ~ 10V) B: 4 ~ 20mA (current ring) C: RS485 (Standard Modbus-RTU protocol, default device address: 01) Power supply voltage: 10~30V DC Response time: < 1S Working environment: Temperature: -40℃ ~ 120℃; Humidity: ≤95%RH Load capacity: Voltage output: output resistance ≤250Ω; Current output: ≤600Ω 5. Data conversion method T: Temperature, unit: ℃; H: Humidity, unit: %RH; V: Voltage collected by the collector (unit: V). A: Current value collected by the collector, unit: mA; RS485 signal (default address 01) : Standard Modbus-RTU protocol, baud rate: 4800; Check bit: none; Data bit: 8; Stop bit: 1 6. Precautions (1) When you receive the product, please check whether the package is in good condition, and check whether the sensor model and specification are consistent with the products you choose. (2) The installation place should be far away from chemical corrosive environment. (3) The sensor and wire should be far away from high voltage and heat source. (4) The sensor is a precision instrument and should be stored in a dry, ventilated indoor environment at room temperature. (5) The sensor is a precision device. Please do not disassemble it by yourself when using it, so as not to cause product damage. 7. Please contact us if you need product instructions.

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PE Probe Temperature and Humidity Sensor Module with OLED Display ModBus RTU RS485 4-20mA 0-10V Industrial Sensors Transmitter 2.1 Product Overview This product adopts high-precision temperature and humidity sensor probes and high-performance microprocessors, which can accurately measure the temperature and humidity in the air, meeting the application requirements of various industries for customers. (2) This product follows the standard ModBus RTU protocol and the address and baud rate can be flexibly modified using the upper computer software. This product, when used in conjunction with the 485 to network conversion module, can transmit data to the cloud server. 2.2 Functional Features (1) It adopts high-precision digital temperature and humidity sensors, with a wide DC voltage supply of 12-24V and a power consumption of less than 1 watt. (2) It adopts imported RS485 chips from well-known brands to provide multiple protections for the interface, including surge prevention, circuit connection error prevention, and hardware watchdog design, ensuring stable operation of the equipment and avoiding system crashes. (3)RS485 interface, standard Modbus RTU protocol, can be transferred to 485-to-4G/Ethernet modules. (4) Provide upper computer debugging software. Users can modify the device address (range 0 to 255), baud rate (range 4800bps to 9600bps), and verification method by themselves. Moreover, these Settings can be saved after power failure. Analog Output Red: Power + ; Black: Power - ; Yellow: Temperature + ; White: Temperature - ; Green: Humidity + ; Brown: Humidity -   RS485 Output Red: Power + ; Black: Power - ; Yellow: RS485 A ; Green: RS485 B  

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BME280 Temperature Humidity Atmospheric Pressure Integrated Sensor Module I2C Output RS485 Transmitter OEM 1M 2M 3M 5M 10M

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30m/s Wind Speed Sensor Weather Station Outdoor 3 Cup Anemometer Sensor High Precision Output RS485 4-20MA 0-5V 0-10V PNP NPN Product Overview This transmitter is widely applicable to scenarios requiring wind speed monitoring, such as agriculture, high-altitude/environmental detection. The power input, sensing probe, and signal output inside the sensor are completely isolated. It is safe, reliable, aesthetically pleasing, and easy to install. Functional Features 1, Measurement Range: 0-30m/s，Resolution: 0.1m/s 2, Anti-electromagnetic interference processing 3, Bottom wire outlet design, completely eliminating the aging problem of aviation plug rubber gaskets, and maintaining waterproof performance after long-term use 4, Adopts high-performance imported bearings with low rotational resistance and accurate measurement 5, Polycarbonate shell with high mechanical strength, high hardness, corrosion resistance, and rust prevention, suitable for long-term outdoor use 6, The equipment structure and weight are carefully designed and distributed, with small moment of inertia and sensitive response

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Digital Display Transmitter with Temperature Humidity Sensor Probe RS485 Analog 0-5V 0-10V 4-20mA Waterproof Temperature Sensors 1. Overview The relative humidity of air is the ratio of the absolute humidity in the air to the absolute humidity at saturation at the same temperature, which is a percentage. (that is, the percentage of the amount of water vapor in the air in a certain time and the amount of saturated water vapor at the temperature) is expressed by RH. The air temperature and humidity sensor adopts imported digital temperature and humidity sensor, which has been finely calibrated during production. The calibration data is stored in the internal memory. Relative humidity and temperature sensor has digital output, can be completely interrotating characteristics, do not need to go through the complex calibration, calibration process, measurement accuracy, linearity, repeatability, interrotating, consistency and other outstanding, it is suitable for environmental equipment matching, instrument equipment integration, general environmental testing. 2. Characteristics (1) High cost performance, wide voltage design. (2) Digital linearization correction, high precision, high stability. (3) full range temperature compensation, temperature and humidity measurement range is wide, the measurement range is optional. (4) Flexible installation, easy to use. (5) Small size, light weight, anti-vibration. (6) Can be made into a variety of shapes, convenient for different customer needs. 3. Scope of application Widely used in building automatic control, telecommunication room, paper making, warehousing logistics, shopping malls, hotels, cinemas, railway stations, museums, theaters, agricultural greenhouses, hospitals, meteorology, clean workshop and other areas that need to measure air temperature and humidity. 4. Product parameters Temperature range: standard -40~80℃, other temperature range can be customized Humidity range: 0 ~ 100%RH (non-condensation state) Accuracy: ±0.3℃ (0℃-65℃); ±3%RH (10%-90%) Repeatability: ±0.1℃; Plus or minus 0.1% RH Long-term stability: < 0.04℃/ year; < 0.5%RH/ year Output signal: A: voltage signal (0 ~ 2V, 0 ~ 5V, 0 ~ 10V) B: 4 ~ 20mA (current ring) C: RS485 (Standard Modbus-RTU protocol, default device address: 01) Power supply voltage: 10~30V DC Response time: < 1S Working environment: Temperature: -40℃ ~ 120℃; Humidity: ≤95%RH Load capacity: Voltage output: output resistance ≤250Ω; Current output: ≤600Ω 5. Data conversion method T: Temperature, unit: ℃; H: Humidity, unit: %RH; V: Voltage collected by the collector (unit: V). A: Current value collected by the collector, unit: mA; RS485 signal (default address 01) : Standard Modbus-RTU protocol, baud rate: 4800; Check bit: none; Data bit: 8; Stop bit: 1 6. Precautions (1) When you receive the product, please check whether the package is in good condition, and check whether the sensor model and specification are consistent with the products you choose. (2) The installation place should be far away from chemical corrosive environment. (3) The sensor and wire should be far away from high voltage and heat source. (4) The sensor is a precision instrument and should be stored in a dry, ventilated indoor environment at room temperature. (5) The sensor is a precision device. Please do not disassemble it by yourself when using it, so as not to cause product damage. 7. Please contact us if you need product instructions.

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DS18B20 Temperature Sensor Probe 304 Stainless Steel 6*50MM OD 5.0MM Waterproof Dustproof PVC SL Sensors Cable 1M Length Product description: This temperature sensor is made of DS18B20 and 6x50mm stainless steel by pressing and sealing through rolling groove, which is waterproof, collision-proof, quick reaction, accurate measurement and good consistency. Application Range: Fish tank, aquarium, cold storage temperature monitoring, pharmaceutical factory GMP Monitoring System, Telecom Room Monitoring, beer production, building automation, warehouse temperature monitoring, environmental monitoring, air conditioning monitoring, incubation temperature control, aquaculture temperature measurement, household refrigerator, air temperature monitoring, HVAC system. Dimensions and specifications: Serial number Name ofmaterial Specifications/models Quantity Notes 1 Sensors DS18B20 1pcs -- 2 Probehousing 6x50mm stainless steel 1pcs White 3 Groove Water-proof technology ofrolling trough -- -- 4 Wires 2464 # 22AWG PVC sheathed wire 1pcs Black 5 Interface Peel and tin -- -- Performance: Serial number Project Value 1 Temperature measurement range -55° C ~ + 125 ° C 2 Resolution 9 to 12 bits (highestresolution 0.0625 ° C) 3 -10 ° C ~ 85 ° C maximumtemperature error ± 0.5 ° C 4 -55 ° C ~ 125 ° C maximumtemperature error ± 2 ° C 5 Time of maximum conversion temperature 750 MS 6 Wide temperature conversionvoltage range 2.7 V to 5.5 V 7 Low standby current powerconsumption 1mA/3V (typical) 8 Low switching current powerdissipation 1mA/3V (typical) 9 Withstand voltage test AC1800V i = 0.5 Ma    10s

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Temperature Humidity Sensor Probe Cable Metal Head Digital Capacitance Sensors 1M Length I2C Output SHT20 SHT30 SHT40 SHTC3 Functional characteristics: The new generation of the all-new Swiss Sensirion Temperature and humidity chip. I2 C interface, digital signal output resolution up to 14 bits. Full calibration, internal self-calibration. Low power consumption, high reliability and excellent long-term stability. The combination of temperature and humidity is convenient for dew measurement. Waterproof sealant is adopted to prevent short circuit in wet environment. Suitable for temperature and humidity detection of cold chain, electric power, refrigerator, etc. Line length can be customized. Product introduction: The temperature and humidity sensor uses Sensirion digital temperature and humidity chips. The sensor outputs calibrated digital signals in standard I2C format for accurate measurement. In order to meet the customer's use in non-PCB board welding environment, waterproof design and use of lead mounted for customer's convenience. Storage conditions and precautions: Air relative humidity is a function of temperature, air temperature has a great effect on the relative humidity, acid, alkali, salt and other compounds on water vapor The nature of the theory has a significant impact, should pay attention to the following matters when using: 1. The temperature and humidity sensor should be installed in a place where the temperature is relatively stable and can best represent the measured ambient temperature and humidity; 2, avoid installation in places with drastic changes in temperature; 3, avoid installation in the place of fierce air flow; 4, avoid installation in the dead Angle where the air does not flow; 5, avoid using in the environment with salt spray; 6, avoid use in corrosive gas environment; 7. Sensors exposed to extreme working conditions or chemical vapors can be restored to a calibrated state through the following treatment; Drying: Keep at 80℃ and less than 5%RH for more than 10 hours; Rehydration: Keep at 20-30℃ and humidity >75%RH for 12 hours; 8. The temperature and humidity sensor and circuit inside the module have been protected by silicone rubber, and are protected by waterproof and breathable shell, which can effectively improve its service life in high humidity environment. However, it is still necessary to take care to avoid the sensor being soaked in water, or long term use in high humidity and condensation conditions.

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30m/s Polycarbon Wind Speed Direction Sensor Weather Station Outdoor 3 Cup Anemometer Sensor Output RS485 4-20MA 0-5V 0-10V Wind Speed Transmitter: Small and portable, easy to carry and assemble, three cups design concept can effectively obtain wind speed information, the shell is made of polycarbonate composite material, with good corrosion resistance, corrosion resistance and other characteristics, it can ensure that the transmitter is used for a long time without the phenomenon of rust-cut, at the same time, it can cooperate with the internal smooth bearing system to ensure the accuracy of information collection, and output the data with the traditional analog signals (4-20mA, 0-10V, 0-5V) . It is widely used in greenhouse, environmental protection, weather stations, ships, docks, aquaculture and other environmental wind speed measurement. Functional Characteristics: Range: 0-30m/s (customizable 0-70m/s) , Resolution 0.1 m/s Anti-electromagnetic interference processing Bottom outlet mode, completely eliminate the aging problem of aviation plug rubber pad, long-term use is still waterproof Adopt high-performance imported bearings, small rotational resistance, accurate measurement Polycarbonate shell, mechanical strength, high hardness, corrosion resistance, non-rust can be used outdoors for a long time The structure and weight of the equipment are carefully designed and distributed, and the moment of inertia is small and the response is sensitive The utility model can be applied to four-wire system and three-wire system connection at the same time. Wind Direction Transmitter: Compact and portable, easy to carry and assemble, the new design concept can effectively obtain wind direction information, the shell is made of polycarbonate composite material, with good anti-corrosion, anti-corrosion and other characteristics, anti-exposure, high impact strength, and with the internal smooth bearing system to ensure the accuracy of information collection, traditional analog signals (4 -20 Ma, 0 -10 V, 0 -5 V) are used for data output. It is widely used in greenhouse, environmental protection, weather stations, ships, docks, aquaculture and other environmental wind direction measurement. Functional characteristics: Range: 8 directions Anti-electromagnetic interference processing Adopt high-performance imported bearings, small rotational resistance, accurate measurement Polycarbonate shell, mechanical strength, high hardness, corrosion resistance, non-rust can be used outdoors for a long time The structure and weight of the equipment are carefully designed and distributed, and the moment of inertia is small and the response is sensitive. The utility model can be applied to four-wire system and three-wire system connection at the same time.

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60m/s Weather Station Outdoor 3 Cup Anemometer Sensor Polycarbon Fiber Wind Speed Wind Direction Sensor Output RS485 4-20MA 0-5V Overview The three-cup wind speed sensor is a wind speed measuring instrument independently developed and produced by our company. The sensor shell is made of polycarbonate composite material, which has good anti-corrosion and anti-corrosion characteristics, it can ensure the long-term use of the sensor without the phenomenon of rust-cut, while cooperating with the internal smooth bearing system to ensure the collection of information. Internal integrated photoelectric conversion mechanism, industrial microcomputer processor, standard current generator, current driver and so on. The PCB is made of military grade a material, which ensures the stability of measuring parameters and electrical performance, while the electronic component is made of imported industrial grade chips, which make the whole system highly reliable against electromagnetic interference, it can ensure that the main engine can work normally in the range of ー20 ° C ー70 ° C, humidity 5% ー95% Rh (no dewing) . After the product upgrade, the output signal variety, wired output includes: analog signal (voltage, current) , digital signal RS485; wireless output includes: Lora, GPRS, 4G, wireless output in addition to Lora, other forms can be connected to the cloud platform, the intelligent terminal data monitoring and management. Features (1) the sensor has compact design and high measuring precision. (2) fast response and good interchangeability. (3) to realize low cost, low price and high performance. (4) the flange installation mode can realize the lower outlet line and the side outlet line, which is simple and convenient. (5) the data transmission efficiency is high, the performance is reliable, guarantees the normal work. (6) the power supply has wide application range, good linearity of data information and long signal transmission distance. (7) with two parameters of wind speed and wind level, the data is reliable. Scope of application This product is widely used in greenhouse, environmental protection, weather stations, engineering machinery, ships, docks, aquaculture and other environmental wind speed measurement. Product information The measuring range: 0-30m/s, 0-50m/s, 0-60m/s Starting wind speed: ≤0.3 m/s Accuracy: ± (0.2 + 0.03 V) m/s Output Signal: A: voltage signal (0-2v, 0-5v, 0-10V three choose one) B: 4-20mA (current loop) C: RS485(standard Modbus-RTU protocol, device default address: 01) D: NPN, PNP, NPNR, GPRS, 4G, Lora output Supply voltage: 10-30V DC Stabilization Time: < 1 second Response time: < 1 second Working Temperature: ー20 ° C ー70 ° C Working Humidity: ≤100% Rh Storage Temperature: ー20 ° C ー70 ° C Storage humidity: ≤100% Rh Load capacity: voltage output: output resistance ≤250 ω; current output: ≤600 ω

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1M I2C Output SHT20 SHT30 SHT40 SHTC3 Temperature Humidity Sensor Module Probe Cable Waterproof Digital Capacitance Sensors Product introduction: temperature and humidity sensors are compatible with the digital temperature and humidity chip of Sensirion company. The sensor outputs calibrated digital signal, standard I2C format, and accurate measurement;In order to meet the customer's use in non PCB welding environment, waterproof design and lead installation are adopted to facilitate the use of customers. Functional features: 1, New generation of Swiss Sensirion temperature and humidity chip. 2, I2C interface, digital signal output resolution up to 14 bits. 3, Complete calibration, internal self calibration . 4, Low power consumption, high reliability and excellent long-term stability. 5, Close combination of temperature and humidity is convenient for open measurement. 6, The waterproof glue is used to seal the circuit to prevent short circuit in humid environment. 7, Suitable for cold chain, power, refrigerator isothermal humidity detection, line length can be customized. Storage conditions and precautions: The air relative humidity is a function of temperature, and the air temperature has a great influence on the relative humidity. Acids, alkalis, salts and other compounds have a great influence on the physical properties of water vapor. The following items should be paid attention to when using: 1. The temperature and humidity sensor should be installed in a place where the temperature is relatively stable and can best represent the measured ambient temperature and humidity; 2. Avoid installation in places with drastic temperature changes; 3. Avoid installation in places with intense air flow; 4. Avoid installation in a dead corner where air does not flow; 5. Avoid using it in salt fog environment; 6. Avoid using in corrosive gas environment; 7. Sensors exposed to extreme working conditions or chemical vapor can be restored to the calibration state by the following treatment: Drying: at 80℃ and humidity < 5%RH for more than 10 hours; Rehydration: keeping at 20-30℃ and humidity > 75%RH for 12 hours; 8. The temperature and humidity sensor and circuit inside the module have been treated with silicone rubber protection and protected by waterproof and breathable casing, which can effectively prolong its service life in high humidity environment. However, it is still necessary to pay attention to avoid sensor flooding or long-term use under high humidity and condensation conditions;

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Soil Temperature Humidity Sensor Probe RS485 Output 0-5V 0-10V 4-20mA Analog Soil Moisture Detector Sensors IP68 Protection Introduction A soil sensor is a device capable of measuring various parameters of soil, such as temperature, humidity, EC, salinity, nitrogen, phosphorus, potassium, etc. It converts the physical, chemical and biological information in the soil into electrical or digital signals through specific sensing elements for further processing and analysis. In modern agriculture, soil sensor technology is mainly used to monitor various parameters of the soil, providing data support for precise planting and intelligent management. Through soil sensors, farmers can promptly understand the condition of the soil, adjust management measures such as fertilization and irrigation, and improve the growth quality and yield of crops. Meanwhile, the application of this technology also helps to reduce production costs, protect the ecological environment and achieve sustainable agricultural development. The soil temperature part is collected by NTC resistance and converted by a 12-bit ADC. The soil moisture part is based on the FDR(Frequency Domain Reflection) principle. By measuring the dielectric constant of the soil, it can directly and stably reflect the true moisture content of various soils and measure the volume percentage of soil moisture. The soil electrical conductivity part is based on complementary PWM output as the signal excitation source, and the resistance value is collected by bridge type. Finally, the temperature is added to compensate the conductivity signal to 25℃ and then output it as the salt content signal. Product features This sensor adopts a needle-type design, which is convenient for insertion into the soil. (2) The data has high timely response and good interchangeability. (3) It adopts epoxy resin sealing and can achieve a protection level of IP68. (4) It has a relatively small impact on soil quality and is widely applied in various regions. (5) Electrical and magnetic isolation is adopted in multiple places to ensure product performance and normal operation. (6) Standard Modbus-RTU protocol Scope of use It is applicable to fields such as water-saving agricultural irrigation, meteorological monitoring, environmental monitoring, greenhouse sheds, flower and vegetable cultivation, grassland pastures, soil rapid testing, plant cultivation, and scientific experiments, where soil temperature and humidity, electrical conductivity, soil pH, and soil nitrogen, phosphorus and potassium need to be measured. Product parameters Temperature measurement range: -40 to +80℃, resolution 0.1℃ Temperature measurement accuracy: ±0.5℃, resolution 0.1% Humidity measurement range: 0 to 100%(m ³ /m ³) Humidity measurement accuracy: ±2% within the range of 0 to 50% (m ³ /m ³) Output signal A: Voltage signal (choose one of 0 ~ 2V, 0 ~ 5V, 0 ~ 10V) B: 4 ~ 20mA (current loop) C: RS485 (Standard Modbus-RTU protocol, default device address: 01) Supply voltage 5 ~ 24V DC (when the output signal is 0 ~ 2V, RS485) 12 ~ 24V DC (when the output signal is 0 ~ 5V, 0 ~ 10V, 4 ~ 20mA) Stabilization time: < 1 second Response time: < 1 second Encapsulation: Sealed with epoxy resin, it can achieve a protection level of IP68 Default Baud rate: 9600 Baud, 8, N, 1, station number 01, broadcast address FE

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0-2000W Total Solar Radiation Sensor RS485 0-2V 4-20MA 400-1100nm Light Detector Sunshine Radiation Sensor Transmitter Pyranomer The PYR 20 solar radiation sensor is based on optical filter and precision detection circuit, which can measure solar radiation continuously. Widely used in agriculture, flower gardening, grassland pasture, plant cultivation, scientific experiments and other fields, such as solar energy resource assessment, photovoltaic power generation, solar system monitoring, solar energy balance research, heat exchange research, climate change research. This sensor has the following features: 1, to achieve online real-time monitoring of illumination. 2, precision optical filter and detection circuit to ensure stability and reliability. 3, with a horizontal adjustment mechanism and a horizontal bubble, easy to level. 4, waterproof seal, high integration, small size, low power consumption, easy to carry, can be used outdoors. 5, high precision, fast response, good interchangeability, reliable performance. 6, perfect protection circuit and a variety of signal output interface optional.  

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