12V / 24V DC Conventional Smoke Detector for Fire Fighting System Features: 1. Strong adaptability for circumstance 2. SMT Design, High stability 3. 9...
2 Wired 4 Wired Photoelectronic Smoke Detector Alarm for Fire Fighting System Features: 1. Strong adaptability for circumstance 2. SMT Design, High .....
Standalone Photoelectronic Smart Smoke Detector Smoke Alarm with 10 Years This Photoelectric smoke detector detects the smoke by a couple of infrared ...