Ningbo Siterwell Electronics Co., Ltd.

the most professional supplier of high level security products in China, passed CE, SGS,VDS,BOSEC, LPCB and RoHS certificates

DC Smoke alarm GS507

Model No. :
Mini Order :
5000 (Piece/Pieces)
Production Capacity :
70000 (Piece/Pieces) (Day)
Trade Terms :
Payment Terms:
Product Detail
Base Info.
  • Smoke Detectors
  • Infrared Temperature Sensor
  • Smoke Alarms
  • Active
  • Wire Alarm Detectors
  • Power Detector
Additional Info.
  • Ningbo
  • within 30days
  • color box,blister card
Product Description

NF certified stand alone smoke detector GS 507

Ceiling or wall mounting EN14604 approval from NF France.
Easy to install with mounting hardware included 
9VDC battery 
Suitable for any room 
Flash alarm indicator (red) 
Test button for easy recommended monthly testing 
Low battery signal
Safety clip feature, not allow mounting of smoke alarm
without battery installed 
photoelectric chamber for early detection from all directions 
Loud 85dB alarm signal Product size :Φ100*37MM




Smoke detector is a device that detects smoke, typically as an indicator of fire. Commercial, industrial, and mass residential devices issue a signal to a fire alarm system, while household detectors, known as smoke alarms, generally issue a local audible and/or visual alarm from the detector itself.

Smoke detectors are typically housed in a disk-shaped plastic enclosure about 150 millimetres (6 in) in diameter and 25 millimetres (1 in) thick, but the shape can vary by manufacturer or product line. Most smoke detectors work either by optical detection (photoelectric) or by physical process (ionization), while others use both detection methods to increase sensitivity to smoke. Sensitive alarms can be used to detect, and thus deter, smoking in areas where it is banned such as toilets and schools. Smoke detectors in large commercial, industrial, and residential buildings are usually powered by a central fire alarm system, which is powered by the building power with a battery backup. However, in many single family detached and smaller multiple family housings, a smoke alarm is often powered only by a single disposable battery.

Why choose photoelectric alarms?
Photoelectric smoke alarms are much faster at detecting this dangerous situation than ionisation alarms. Studies have shown that photoelectric alarms typically

respond to smoky fires within about three to five minutes — when the level of smoke is still fairly low and escape is relatively easy. Most ionisation alarms

take much longer — up to 20 minutes or more — by which time there’s enough smoke to significantly reduce visibility, making escape much more difficult.











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