Solid Signal > Video Surveillance > Security System Accessories
The SM-89 from SecurityMan is an inexpensive add-on wireless panic button which is fully compatible with Air-Alarm II series alarm system. It supports long transmit range, user friendly, and Do-It-Yourself installation. And, it is inexpensive.
- Operating power 23A 12V (Alkaline Battery)
- Wireless transmitting distance >450ft (in open area)
- Service life < 2 years
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