Shangdong Renke Control Technology Co., Ltd

Product Description Our wind direction sensors is mechanical rotate sensor, cup turns round once be blown. Digital circuits capable of strong RFI & EMI resistance and automatic temperature compensation are installed inside the sensor, it outputs voltage and current signals by electromagnetic induction, the value and horizontal wind speed are linear relation. Sensor external parts all are made of alloy material and finish by surface powder coating, featured with water proof, corrosion resisting. Inside and turning position have sealing rings with nice sealing function, stop water, salt fog and dust getting in. Parameter: Testing range 0~36 Start wind speed 0.8m/s Resolution 22.5 Accuracy ±3 Working Environment Temperature: -20C~+85C Humidity 95%RH Output 0-5VDC 4-20mA Resistance for current output 250 Working Voltage 12~30VDC (common 24VDC) Limit wind speed Max: 70m/s 30min Electrical connection M12 Environmental Protection IP65 Features detail Strong RFI & EMI resistance and automatic temperature compensation High sensibility, high precision, high frequency response and permanent stability Excellent resistance against impact, overload, shock and erosion

Soil NPK Sensor The soil nitrogen, phosphorus, and potassium three-in-one fertility sensor is suitable for detecting the content of nitrogen, phosphorus, and potassium in the soil, and determining the fertility of the soil by detecting the content of nitrogen, phosphorus, and potassium in the soil, thereby facilitating the systematic assessment of the soil condition. Can be buried in the soil for a long time, resistant to long-term electrolysis, corrosion resistance, vacuum potting, completely waterproof. FEATURES: 1) Low threshold, few steps, fast measurement, no reagents required, unlimited detection times. 2) High measurement accuracy, fast response speed and good interchangeability. 3) The electrode is made of a specially treated alloy material, which can withstand strong external force and is not easy to be damaged. 4) Completely sealed, resistant to acid and alkali corrosion, can be buried in the soil for long-term dynamic testing. 5) Probe insertion design ensures accurate measurement and reliable performance. Electrical Wiring �.Instructions 1.1 Quick test method Select a suitable measurement location, avoid stones, and ensure that the steel needle does not touch hard objects. Discard the topsoil according to the required measurement depth, and maintain the original tightness of the soil below. Hold the sensor vertically and insert it into the soil. It is not allowed to shake left and right, it is recommended to measure multiple times to find the average value within a small range of one measurement point. 1.2 Buried survey Vertically dig a pit with a diameter of> 20cm, insert the sensor steel needle horizontally into the pit wall at a predetermined depth, bury the pit tightly, and stabilize it for a period of time, then you can perform continuous measurement for several days, months, or even longer. 1.3 Precautions 1). All steel needles must be inserted into the soil during measurement. 2). Avoid direct sunlight on the sensor, which will cause excessive temperature. Pay attention to lightning protection in the field. 3). Do not bend the steel needle violently, do not pull the sensor lead wire with force, and do not beat or violently hit the sensor. 4). The protection grade of the sensor is IP68, which can soak the sensor in water. 5). Due to the presence of radio frequency electromagnetic radiation in the air, it should not be energized in the air for a long time. Application The sensor is widely used in soil nitrogen, phosphorus, potassium detection, precision agriculture, forestry, soil research, geological exploration, plant cultivation and other fields.

4-20 mA/0-5v/0-10v Output NH3 ammonia sensor Product Description Our NH3 sensor uses the electrochemical principle to detect the concentration of ammonia (NH3). The reaction is rapid, sensitive, low-power, high-precision, anti-interference, and has excellent repeatability and stability. This product is widely used in the detection of ammonia in industrial, mining and environmental protection. Analog signal output, 4~20mA, 0~5V, 0~10V optional, equipment 10~30V wide voltage supply. The enclosure rating is high and can be adapted to different environmental monitoring. Power supply 10~30V DC output signal 4~20mA0~5V0~10V Power consumption 0~50ppm accuracy (high precision) 0.25W 0~100ppm accuracy (high precision) 0.25W 0~500ppm 1W Operating temperature -20~+50 Working humidity 15%RH~90%RH Pressure range Standard atmospheric pressure ±10% Stability (months) ï¼?10% Response time 150S Zero drift (-20~40C) -3~10ppm (0~100ppm products) Repeatability 10%output value Service life 24 months Precision 0~50ppm accuracy (high precision) ±10%FS 0~100ppm accuracy (high precision) ±10%FS 0~500ppm ±20%FS±10ppm Oxygen content: 18% Resolution 0~50ppm model: 0.01ppm 0~100ppm model: 1ppm 0~500ppmmodel1ppm Detailed Images 1. High-sensitivity gas detection probe, stable signal, accurate measurement of NH3 concentration (PPM), high accuracy. 2.Avariety of measurement ranges, 0~50PPM, 0~100PPM, 0~500PPM. 3.Avariety of analog signal output options: 4~20mA, 0~5V, 0~10V. 4. The product adopts wall-mounted waterproof shell, which is easy to install and has high protection level. . Installation Instructions No output or output error possible reason: 1) The range corresponding error causes the PLC to calculate an error. 2) The wiring method is incorrect or the wiring sequence is wrong. 3) The power supply voltage is incorrect (24V power supply for 0~10V models). 4) The distance between the transmitter and the collector is too long, causing signal disturbance. 5) The PLC collection port is damaged. 6) Equipment damage. Notes 1) The aging test before use is not less than 48 hours; 2) Electrolyte leakage will cause injury, please do not disassemble the sensor at will; 3) The sensor should avoid contact with organic solvents, paints, chemicals, oils and high-concentration gases; 4) The sensor should not be immersed in an oxygen-free environment for a long time, otherwise it will damage the performance of the sensor; 5) It should not be used for a long time in an environment containing corrosive gases, corrosive gases will damage the sensor; 6) It is forbidden to store and use in high concentration alkaline gas for a long time; 7) The air inlet holes must not be blocked or contaminated. Our Services & Strength 1.OEM servie, we can design as your requirements. 2.2 years warranty for our sensors 3.We have CE,FCC,ISO,ROHS certificates. 4.We have sensor in stock, can delivery immediately.

Cheap Price Greenhouse Oem Analog co2 Carbon Dioxide Sensor with 0-10v output Product Description Our co2 sensor uses high sensitivity gas detection probe, signal stability, high precision. With a wide measuring range, good linearity, easy to use, easy to install, transmission distance and so on. Detailed Images Products keywords co2 sensor Supply power: 10~30V DC Signal output 4~20ma/0~5V/0~10V/RS485(Modbus-RTU) Protection level IP65, can be used for snow and rain environment Working environment 0 ~ 70 â??, 0 ~ 95% RH (no condensation) Temperature effects comes with temperature compensation CO2 Measurement range 0 ~ 5000ppm (can be customized) CO2 Accuracy �± (40ppm + 3% F �· S) (25 â??) Maximum power consumption RS485 0.4W 4-20ma/0-5v/0-10v 1.2W American brand chip, warranty 2years, communication distance 2000m. RS485 or 4-20ma,0-5v,0-10v for optional The transmitter adopts the new infrared verification technology to measure the CO2 concentration, and the reaction is quick and sensitive, avoiding the life of the traditional electrochemical sensor and the long-term drift problem. It is widely used in agricultural greenhouses, flower cultivation, edible fungi planting, etc., requiring CO2, temperature and humidity. The occasion of monitoring.Having Analog or 485 communication, standard ModBus-RTU communication protocol, communication address and baud rate can be set, the farthest communication distance is 2000 meters. The equipment is 10-30V wide-voltage power supply, and the enclosure has a high degree of protection, which can adapt to various harsh conditions on site. Electrical Wiring RS485 OUTPUT Line color Description power brown Power supply(10 ~ 30V DC) black Power supply negative Communication yellow 485-A blue 485-B Range 10V-30V of wide voltage is available in power input, the A wire and B wire can not be connected contrary when connecting to 485 signal, and the address among several devices on the total wire can not be conflicted. 4-20ma, 0-5v, 0-10v OUTPUT Line color Description Power brown Power supply black Power supply negative Output blue CO2 signal positive green CO2 signal negative NOTE: Two types wire methods 1.Four-wire connection diagram 2.Three-wire connection diagram

Product Description soil moisture and soil temperature sensor to facilitate soil moisture and soil temperature measurement. The product has high precision, fast response and stable output. It is less affected by soil salinity and is suitable for various soil types. It can be buried in the soil for a long time, resistant to long-term electrolysis, corrosion resistance, vacuum potting, waterproof and rust proof. Soil Moisture Sensor Technical Parameters Technical Parameter The signal output type Output voltage 0-2V output impedance

o3 gas sensor is widely used in water disinfection, food processing and purification, food storage and preservation, medical and health, and household disinfection and purification. In ozone applications, a certain concentration of ozone is an important parameter to ensure disinfection, energy conservation and pollution prevention. But as If the concentration of ozone in the environment is too high, it will cause harm to the human body. Therefore, it is very necessary to effectively monitor the concentration of ozone. The transmitter uses electrochemical technology to measure O3 concentration, and the reaction is quick and sensitive, which can reliably detect ozone concentration. degree. o3 gas sensor product uses 485 communication, standard ModBus-RTU communication protocol, communication address and baud rate can be set, the farthest pass The letter distance is 2000 meters. The equipment is 10-30V wide-voltage power supply, and the enclosure has a high degree of protection, which can adapt to various harsh conditions on site.

RS-FS- * wind speed sensor, compact and lightweight, easy to carry and assemble, design cups can be efficiently obtain information about the wind speed, high-quality aluminum alloy housing, external spray plating process, has good anti-corrosion, anti- erosion and other characteristics, to ensure the long-term use of non-rust transmitter cut phenomenon, in conjunction with smooth internal bearing system to ensure the accuracy of the information collection, and traditional analog signals (4-20mA, 0-10V, 0- 5V) for data output. Is widely used in greenhouse, environmental protection, weather stations, ships, docks, breeding and other environmental wind speed measurement.