This soil moisture sensor is not a standalone product ! You need the WiFi outdoor irrigation controller (also available in our webshop here). ith the RainPoint sensor you can check the soil moisture and soil temperature anytime, anywhere in the APP. You will be able to automate irrigation schedules depending on the moisture content of the soil. You can install max. 1 sensor per Gateway. The sensor uses a radio signal (433 MHz) every 5 minutes to send the data to the Gateway. You can also automate the execution of irrigation schedules based on the moisture percentage of the soil. By setting the desired minimum moisture percentage of the sensor, no irrigation will take place automatically (even if you have set irrigation schedules) as long as the current moisture percentage remains above the value you have set. By default, this percentage is 60% (only below 60% the irrigation schedules will be executed). You can manually change the minimum value to 20, 40, 80 or 100%. With the 2 black buttons on top of the sensor you can also read the moisture percentage on the sensor itself, shown by 5 LED lights. The sensor is powered by 3X AAA batteries. They last approximately 1 year. The battery status of the sensor is also displayed in the APP.