DSC WT4901 2-Way Wireless Indoor Siren

Price: $44.89
(as of Feb 28, 2023 09:06:59 UTC – Details)

Siren sounds for alarms, door chimes, entry/exit delay and troubles
Transmits RF status, low battery and tamper condition
Compatible with Alexor
Front and back tamper detection
Onboard test button / 1 year battery life (typical usage)