Features: Soil Sensor -- Measure and monitor the temperature and moisture of soil, helps the growth of your plants. Soil temperature measuring range 14~140, soil moisture measuring range 0%~100%. Smart App Control -- Automatically make the water timer to stop watering if the sensor detects the soil humidity exceeding the alarm value, you can set up the value manually. And it can record the soil temperature and humidity in recent 10 days, which shows in graph on App for clear reviewing. Easy to Use -- Connect the soil temperature and humidity sensor with smart irrigation timer through App on phone via BT. High Quality -- Sturdy plastic shell with stainless steel probes features IP65 waterproof rating, durable for long service life. Long Battery Life -- Use 4 pieces of AAA batteries(NOT included), which can last for a year, no need to recharge and replace it so often. Note: *Battery not included. Specifications: Material: ABS, stainless steel Color: Green Max. Effective Distance Between Sensor and Irrigation Timer: 60 meters Soil Moisture Measuring Range: 0% ~ 100% Soil Temperature Measuring Range: -10~60 (14~140) 5 Level Indicator: 20%, 40%, 60%, 80%, 100% Probe Material: Stainless Steel Water Resistance Level: IP65 Power Supply: AAA Battery, 4pcs(NOT included) Battery Life: 1 year Item Size: 13.5*13.8*10cm / 5.31*5.43*3.93in Item Weight: 179g / 6.31oz Package Size: 14.2*14.1*10.5cm / 5.59*5.55*4.13in Package Weight: 250g / 8.81oz Packing List: 1 * Soil Moisture Sensor 1 * User Manual(English)