Wireless outdoor alarm repeater, Long distance wireless alarm accessory, AM modulation security alarm emitter, Wireless transmitter, alarm system.<br> <br>Features:<br>1. Codes of detectors are learned automatically.<br>2. Transmit 24 detectors' signal of 24 zones simultaneously.<br>3. Own 2 wired zones, which can make NO / NC by sewing resistance.<br>4. Clew / reprot / restore to report on low battery or power.<br>5. Be suitable for outdoor enviroment and waterproof.<br>6. Tamper-Resistant.
