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- Sleek design virtually disappears
- Easy-to-open case requires no special tools
- Case tamper protection
- Ideal for double-hung windows
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Package Quantity:2
Honeywell’s 5811 Thin Door/Window Contact Transmitter virtually disappears when installed next to standard door/window transmitters. It is ideal for casement and double-hung windows. The 5811 provides a single zone of protection, and installs easily on doors or windows with the included mounting hardware or double-sided adhesive tape.