Most small sensors for doors, windows, temperature and leaks use coin or small batteries, and they usually run for one to two years or more, depending on the model and how often they trigger. Some sensors, such as many presence sensors, plug in instead and have no battery.

Vaety. chooses sensors that report their battery level to your hub, so you get a notice well before one stops. We keep a list of what is installed and where, and we use standard batteries you can buy locally, so replacing one is a quick job you can do yourself or ask us to do.

Battery life drops in very hot places and with sensors that trigger constantly, such as in a busy hallway, so we place and set them with that in mind.