when the heat detector detect fire , the detector will send out sounds and flashed light.

Selects the high precision of gas sensors, has a long life, high sensitivity, 
high stability and other characteristics,widely hailed for its high quality .

Heat Detector Product Description:
1. Product model：AK-228A4 
2. photoelectrics sensor
3. high sensitivity
4. Interconnect up to alarms 

5. Power supplied：9V battery,12V DC/ 24V DC 
110V AC Back-up source 9V battery 240V AC Back-up source 9V battery 
6. Alarm temperature :Adjustable:60°C( ),70°C( ),80°C( )
   (generally you can choose 70°C)
7. Static current: ≤20uA
8. Alarm current: ≤100mA
9. Working temperature: -10°C~ 85°C 
10. Wired network function: (NO, NC)(Optional) 
11. Wireless network model: 315MHZ/433MHZ (2262 OR 1527) (Optional) 

Company Information：

We are the professional household gas detector alarm manufacturer with 12 years experiences, mainly produce Household Combustible gas Leak Detector Alarm / Carbon monoxide Detector/ Compound (gas & CO, heat & smoke, gas & smoke & CO ) Detector/ Smoke Detector / Heat Detector, Solenoid Valve, Manipulator with good quality and competitive price.
 Welcome to China and visiting our factory!