This Firehawk smoke detector 230V + 3V backup is an optical smoke detector.
With an optical smoke detector, an infrared light beam is sent to a receiving cell. When smoke enters the path of the light beam, the receiving cell notices that nothing is coming in. The smoke detector then sounds an alarm.
Technical data FIREHAWK, FHN250BB
Operating principle: Optical
Standard via radio connection: No
Primary power supply: Mains power supply
Power supply type: 230v
Supply voltage: 230 - 230 V
Supply voltage at AC 50Hz: 230 - 230 V
Power supply voltage type: AC
With backup battery: Yes
Battery included: Alkaline
Backup: 3v battery
Supplied rechargeable backup battery: No
Mounting method: Surface mounting
Separate foot required: Yes
Color: White
Smoke switch: Yes
Test/pause button implementation: Test button
Degree of protection (IP): IP20
Explosion-tested version: No
With base: No
