The Door/Window Contact is a battery operated, wireless device designed for use with Domonial & Tc Box security systems. Door contacts are intended for use in detecting the opening and closing of doors, windows, or cabinet doors/drawers.
- High performance wireless narrow band, FM radio frequency 868- 870MHz band with anti-jamming.
- 3V lithium batteries (CR123) allowing up to 5 years battery life.
- Wall mounted and opening tamper.