I bought a second time for a gift! The first purchased kit works for the second year without censures. The charge of the display was enough for almost the season (april-november)!!! Batteries in sensors have not yet changed ~ 15 months. According to the reviews of friends-the batteries on the sensors are enough for 2 seasons. Everything works stably, without complaints. The only drawback is the flimsy design of the sensor itself. Therefore, twist it on the nipple-without much effort and fanaticism! I recommend also to disable the display before removing the sensors-otherwise it will squeak until the sensor is in its place! Seller and i recommend the product!!