The innovative soil moisture sensor from gardena is designed to work with almost all gardena water controls and multi channel controls. It ensures that your garden is watered according to demand by measuring the current soil moisture and transmitting this data to your water control. If the soil is still sufficiently moist, the upcoming watering cycle is skipped. In this way, your plants automatically receive reliable and accurate care, and you save water. Due to its compact size, the battery powered soil moisture sensor can not only be used in lawns or flowerbeds, but is also suitable for smaller plant pots. To ensure that the sensor does not interfere with lawn care, it has a particularly low height and a flat surface both lawn mowers and mowing robots can easily drive over the sensor. The soil moisture sensor is powered by two standard aa batteries not included. The batteries should typically last around a year of normal use, and if they are running low, an led indicator will light up to signify that they are almost drained. This will also be indicated on the water control unit. Features and benefits bull designed to work in conjunction with gardena water controls and multi channel controls bull measures soil moisture and sends the data to the water control bull if the soil is already moist enough, any upcoming watering programme will be cancelled bull prevents over watering and saves water bull low height and flat surface enables lawnmowers to ride over it once installed on the lawn bull five metre cable can be extended up to a maximum of 105 metres with extension cables available separately bull powered by two standard aa batteries bull led indicator lights up when batteries are running low specifications bull power aa battery x2 contents bull soil moisture sensor only bull no batteries