FAQ: Door sensors? (2021)

You have a plethora of zwave and zigbee contact sensor to choose from, just search Amazon as a starting point:

Monoprice 15270 Z-Wave Plus contact sensors and Ecolink Z-Wave Plus contact sensors have a 7-10 yr battery life (depending on usage).

The Monoprice 15270 has an added advantage that it can be triggered using an external wired sensor. So if you have an existing wired sensor connected to your door (from a security system or older houses or just need something wired externally), you can hook it up to this device.

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