Honeywell Pencil Door/Window Senses opening or separation. Narrow mounting
- ½ width of competitive products. Great for casements!
- Magnet and Internal reed switch operation
- Magnet can mount beside or over sensor housing
- Strong, reliable RF signal
- 8-10 year battery life on 2-AAA batteries
- 4 x 0.6 x 0.9 inches