IP68 waterproof soil moisture sensor with auto‑calibration function, normally‑closed relay output, powered by 2*AA 3V batteries. Designed for automatic irrigation control of farm, greenhouse and garden.
Voltage: 3V
Waterproof: IP68
Output: Normally‑Closed Relay
Power Supply: 2 × AA Battery
Application: Agriculture, Greenhouse, Garden Irrigation
This soil moisture sensor is developed for soil moisture detection and automatic irrigation control. Featuring built‑in auto‑calibration algorithm, it can automatically adapt to local soil environment after power‑on. Adopted digital smoothing technology to avoid data jump, it can automatically identify and ignore abnormal readings for stable working performance.
✅ Auto calibration after power‑on, no manual adjustment required
✅ IP68 waterproof grade, suitable for outdoor field use
✅ Normally‑closed relay interface output for irrigation switch control
✅ Powered by 2pcs AA batteries (3V), easy installation
✅ Digital smoothing algorithm, stable reading without data jitter
✅ Auto filter abnormal sensor data to avoid misoperation
Widely used in smart agriculture, greenhouse planting, home garden, lawn irrigation projects. It detects real‑time soil humidity and triggers relay signal to realize automatic watering, saving water resources and reducing manual maintenance cost.
Do not use under freezing icy condition. Insert the probe fully into soil before power‑on for accurate calibration.
