Features: Practical soil moisture sensor, suitable for the measurement and testing of soil moisture. High accuracy, reliable performance, less affected by soil salinity, suitable for all kinds of soil. Accurate measurement and it is suitable for a variety of soil environment and quality, practical to use. Wide range of application, it is widely used in greenhouse, soil testing, scientific testing and so on. This soil moisture sensor features low power consumption, high precision, fast response and stable output. Specification: Condition: 100% Brand New Use: Soil Moisture Sensor Probe Material: 304 Stainless Steel Sealing Material: Epoxy Resin (Black Flame Retardant) Power Supply: 5~24V DC Maximum Power Consumption: 30mA x 24V DC Moisture Measurement Range: 0~100% Moisture Accuracy: ±3% in the Range of 0-53%; ±5% in the Range of 53-100% Storage Environment: -40℃~80℃ Response Time: <1s Output Signal: 485 Signal (for Modbus-RTU) Soil Moisture Measurement Area: A cylinder with a radius of 7cm centered on the center probe Probe Length: Approx. 70mm / 2.8in Probe Diameter: Approx. 3mm / 0.12in Cable Length: Approx. 2m / 6.6ft Protection Level: IP68 Weight: Approx. 263g / 9.3 oz Package List: 1 x Soil Moisture Sensor Note: 1. Please allow 0-2 cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.