The 39RSP is a powerful, reliable magnetic contact that easily installs to monitor a door, window, or other opening. This kit contains a sensor and magnet as well as covers and spacers. Rare Earth Magnets and rhodium metal contacts ensure reliability and allow the sensor to work with a gap of up to 1 inch.
- Works with up to a 1" gap
- Size: 1/2" x 1/2" x 2-1/2"
- Standard surface contact
- UL listed
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