Note: It need tuya zigbee hub to work.'t work without hub. 1. Clean the device's outer thoroughly before installation to optimal performance. 2. Insert the soil moisture sensor at least two-thirds into the ground, with the top fully exposed for accurate readings. no water is on the sensor before use. 3. This product requires the Tuya Zigbee Bridge (other gateway are incompatible). Without it, the product not function. Tuya Zigbee Temperature Humidity Moisture Detector Smart Soil Tester Moisture Sensor Phone APP RealTime Monitor For Home Garden 🌱 Smart Tester : Combine a soil tester and water timer for a smart irrigation system. Program the timer to turn on/off based on soil data when both devices connect to the same gateway. 🌱 Reliable Performance : Monitor soil conditions via temperature/humidity , low battery alerts, and mobile app integration. 🌱 Intelligent Monitoring : Real-time soil temperature/humidity monitoring, dynamic tracking, and automatic watering via TUYA Zigbee gateway., Manufacturer: Akfldms