EC21 Product Catalogs - led flash board

2-wireconventional Photoelectric Smoke Detector Sensor Alarm

20240923

flash every six seconds indicating that power is applied and the detector is working properly. The LEDs latch on in alarm. LEDs will be off when a trouble condition exists indicating that the detecto

Microprocessor Control Flammable Gas Detector with Solenoid Valve Gas Controller

20140809

LED flash 8. Failure Indicator: yellow LED on & beeper long-buzz 9. Sound Level: >=85dB/m 10. Operation Temperature: -10 C-+50 C 11. Environment Humidity: <=95% RH (no congelation) 12. Installation w