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Narrow Profile Stainless Steel Exit Switch
A premium push-button switch designed for access control systems. Manufactured from high-quality
stainless steel with a sleek wire-drawing finish, it ensures exceptional durability. Tested for over 500,000
mechanical operations, it is perfectly suited for hollow door installations and comprehensive security setups.

 A premium emergency push-button switch designed for access control systems and fire
safety. Manufactured from high-quality flameretardant PC plastic, it ensures exceptional
durability and security. Perfectly suited for hollow door frame installations, embedded
electric boxes, and comprehensive security setups demanding immediate release in an
emergency.

This product named Photoelectric smoke detector (hereinafter called detector) detects the smoke by a couple of infrared diodes. The principle of detecting is granule in the smoke can reflect infrared light. Infrared diodes are placed in the special chamber. The chamber can shield external light, but doesn't affect the smoke into it. 

While there is no smoke, the diode can receive very weak infrared light. When the smoke enters the chamber, diode can receive more and more light, and the detector can give out an alarm signal when the smoke attains the certain density. In order to reduce interference and lower power consumption, the emitting circuit adopts the pulse signal.