Hanging Doorknob Knocking Alert - CentralAlert™
A portable door sensor solution with many uses
- Doorknock sensor - senses vibration of doorknocking.
- Hangs on inside door handle for privacy.
- Compatible with CA-360, CA-380, CA-RX, CA-CX, CA-Mini, CA-PX, and CA-360H.
- 2 - AA alkaline batteries can last up to 10 months.
- Ideal for home use and hotel stays.
A portable door sensor solution with many uses
You can easily hang it on your doorknob to detect someone knocking. The sensor transmits a wireless signal that triggers the CentralAlert System to notify you when someone is at the door. Ideal for interior and exterior doors at home as well as hotel doors.
Specifications:
Wireless technology................................2.4GHz Smart code
Operating range......................................Up to 200ft.
Battery type............................................2 AA size alkaline batteries
Battery life..............................................Up to 10 months
Operating temperature..............................+10 to 40 degree C
Size.........................................................2.5" x3.8" x 1" (64x96x23mm)