Prima by Napco Recessed Window/Door Transmitter

Implement window and door safeguarding with the Napco Prima Recessed Window/Door Transmitter. When paired with a Prima All-in-One System (available separately), this battery-powered sensor enables you to receive alerts when a door or window is opened or closed. This device is tamper-supervised, and the included CR2 lithium battery has a 10-year lifespan.