Soil NPK PH Sensor, IP68 Waterproof, Stainless Steel, DC 9-30V -, Real - Time Monitoring, Ideal for and Scientific Research

Item Type: Soil NPK PH Sensor ProbeMaterial: 304 stainless steel, plasticWeight: Approx. 348g/0.77lbWaterproof Grade: IP68Size: Approx. 133x60x45mm/5.24x2.36x1.77inCable: Approx. 5m/16.40ftBuilt in Sensors: Soil temperature, soil humidity, NPK, conductivityType: RS485 (For Modbus)Power Supply Voltage: DC 9-30VLoad Capacity: Current output impedance 250ΩVoltage Output Impedance 1KΩMeasuring Range:Soil : 0-60% (volume content)Soil Temperature: -40-80℃Conductivity: 0-20000us/cmNPK: 0-2000 mg/kgAccuracy:Soil : ±3% (0-35% measurement range)±5% (35%-60% measurement range)Soil Temperature: ±0.5℃Conductivity: ±5%NPK: ±2%FSResolution:Soil : 0.1%Soil Temperature: 0.1℃Conductivity: 1us/cmNPK: 1mg/kgWorking Environment: Soil temperature -40 ℃ ~ 80 ℃; soil humidity 60%Protection Class: IP68Probe Material: 304 stainless steel, plastic, anti aluminum zinc alloy electrodeScope of Application:Scientific experiments, water saving irrigation, greenhouses, flowers and vegetables, grass pastures, soil quick measurement, plant cultivation, sewage treatment, grain storage and measurement of content and temperature of various particles.Wiring Method:Default Line Sequence:Line Color and Output SignalRed: Voltage and Current: Power positive, RS485: Power positiveBlack: A+Yellow: B-Green: Voltage and Current: Power negative, RS485: Power negativeDescription of Sensor Communication Protocol:If you are connecting multiple sensors to PLC, configuring or connecting to a programmable data collector, it is recommended to use the standard for ModBus-RTU protocol (hex sending and receiving).Standard for ModBus-RTU communication protocol1. Serial Port Format8 data bits, 1 stop bit, no parity bit, baud

• [ ]: Features a 304 stainless steel with non electrolytic isolation to prevent electrolysis and resist salt alkali for long term soil use
• [High Accuracy]: Measures soil , temperature, conductivity, and NPK levels with ±3% to ±5% precision for reliable and prompt agricultural data
• [Waterproof Design]: IP68 rating with resin vacuum sealing ensures stable performance when buried in soil or immersed in water for extended monitoring
• [Easy Integration]: Supports RS485 Modbus-RTU protocol with clear wiring and communication settings, compatible with PLCs and data collectors
• [Versatile Applications]: Suitable for greenhouses, irrigation management, plant cultivation, sewage treatment, and soil condition quick testing