SM-200QBR – Alarm Switch sensor, Screw-Terminal Surface-Mount Contact, SPDT-NO, SPST, 13 mm, 63.5 m

The most basic sensors of any alarm system is a door and window Surface Mount Magnetic Contact Switch. This type of contact switch is for normally closed circuits; this means that the when the magnets are lined up, the switch is closed. This type of setup is ideal for monitoring doors, windows, and sliding doors.

• Use on closed circuit systems > Normally closed switch.
• UL listed for security systems
• Use on doors, windows, and sliding doors
• .75in operational gap
• Black

Mfr. # SM-200QBR