Product Composition: The soil moisture sensor consists of a power supply module, transmission module, zero drift and temperature compensation module, and data processing module. Powerful Function: The sensor features built-in signal sampling and amplification, zero drift correction, and temperature compensation. It has minimal impact on soil quality and is widely used across various applications. Measurement Range: 0–100% with high accuracy, reliable performance, fast response, excellent interchangeability, and efficient data transmission. Compact Design: The soil moisture sensor has a small, lightweight design that is easy to carry and connect. The cable length is approximately 1.5 meters, suitable for most usage requirements. Long Lasting Use: Supports dielectric constant signal output, features excellent sealing performance, and has an IP68 protection rating. It can be directly buried in soil for long-term use and is resistant to corrosion and rust. Specifications: Item Type: Soil Moisture Sensor Material: ABS Weight: Approx. 141g / 5oz Probe Material: Stainless Steel Sealing Material: Epoxy Resin Measurement Parameter: Soil Volumetric Water Content Measuring Range: 0–100% Measurement Accuracy: ±3% Resolution: 0.1% Measurement Area: Cylinder with a diameter of 7cm and height of 7cm centered around the probe Probe Diameter: Approx. 3mm / 0.12in Response Time: 2 seconds Cable Length: Approx. 1.5m / 4.9ft Working and Storage Conditions: Working Temperature: -40°C to 85°C Working Humidity: 0–100% RH Storage Temperature: -40°C to 125°C Storage Humidity: 0–100% RH