This is a Recessed Door Contacts NC Security Alarm Window Sensors With Magnetic Reed Switch and Lead Wire

It can Work with all access control and burglar alarm systems. Can be installed in wooden or aluminum alloy doors and windows.

• Material: ABS;

• Magnetic Door Swith Size:φ25*23.6mm /0.98"*0.93";

• Lea Wire Size:1007UL #24AWG 260mm;

• Transmitting Distance: 20-30mm;

• Maximum Rated Power:10W ;

• Maximum Contact Capacity: 0.5A ;

• Maximum Working Voltage: 100V ;

• Contact Type: NC ;