Door/Window Entry Alarm with Magnetic Sensor, Pack of 2

Price: $13.49
(as of Feb 18, 2023 21:05:58 UTC – Details)

Overall alarm housing dimensions: 2-1/2″L x 1-1/4″W x 5/8″T
Easy tool-free installation to window or door; Mounted using double-sided adhesive tape (included)
Magnetic sensor switch detects entry protecting home or office
Three 1.5V button cell batteries, INCLUDED
Pack of 2 sensors for two windows or doors
90 DP plus @ 3 ft. sound level