Feature●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 levelDescription
Overall alarm housing dimensions: 2-1/2"L x 1-1/4"W x 5/8"T