Home and commercial fire alarm manual call point, Smoke Detector, Gas Detector, Heat Detector, Alarm Bell, Electrovalve etc.
The criterion: GB15322, UL1484, EN50194, EN50291, UL2034 etc.
They have a manual test button and can be ceilling mounted or wall mounted. Can be wired or wireless, and can either network alarm transmitting or on-spot alarm belling.
OEM/ODM available for the alarm accessory.