This Universal 3-Zone Sensor ELK-6022 has a built-in reed switch plus two external zone inputs, with open or closed circuit, which allows it to secure up to 3 doors or windows, etc. It also features two-way wireless signal acknowledgement with transceiver, and utilizes cutting-edge technology to defend against interference, hacking, and jamming.
- Field installed plunger for front and back detection
- Assures installation confidence through signal quality and status LED indicators
- 902-928 MHz frequency-hopping spread spectrum to ensure signal gets through
- Maximum operating gap of reed: 1/2”
- 3V CR123A lithium battery
- Battery Life: 7 years typical