เครื่องตรวจจับความร้อนคู่ธรรมดา รุ่น C-9103

The Thermotech 302 Series rate-anticipation heat detec- tors operate within a controlled range of two to three de- grees of their set points, regardless of the speed or rate of temperature rise.

FST-851 Series Intelligent Thermal (Heat) Detectors with FlashScan®

Gas Extinguishing Warning Indicator

โคมไฟฟ้าแสงสว่างฉุกเฉิน รุ่น CP 03-9 AD

Protective Flip Cover

If smoke is present in the beam’s path, the received signal is reduced by a level determined by the density of the smoke.