Fire Alarm Bell

Product Description: SR-A91 Electric bells have been widely used at railroad crossings, in telephones, fire and burglar alarms, as school bells, doorbells, and alarms in industrial plants. Mounted for wall and ceiling applications, indoors or outdoors. Main features: SR-A91 Indoor Fire Bell Voltage: DC24V or DC12V Rated current:20mA Sound pressure: 96dB/m(A) Standard: GA385 Size:150mm Weight :480g Stuff: duralumin

1. General HS-JL188-6 Electric bell of notification appliances offers a wide range of Sound, for wall and ceiling applications, indoors and outdoors. They are designed to be used in 24 volt DC systems. 2. Specifications Name 6" Alarm Bell Item No. HS-JL188-6 Operating voltage DC24V Alarm current 70mA @ DC24V Alarm sound intensity Minimum 95dB Dimension Diameter 155mm, height 45mm Weight 650g Features Easy to install bracket 3. Features Operating Voltage : DC24V Alarm Current: Maximum 70 mA Alarm Sound Intensity: Minimum 95dB

Model No. SR-820DHS Operating voltage 9V battery Interconnection N/A Alarm temperature 57 Sensitivity 2.06%ft±1.3%ft Sound level 85dB/3m Installation Wall or Ceiling mounted Working environment -10~+50(â?¤95%RH No congelation) Dimension 128*38mm

Model No. SR-812PC-2 Operating voltage DC9~35V Alarm temperature N/A Static current 20uA Alarm current 35mA@DC12V;83m@DC24V Alarm output Remote LED indicator Installation Ceiling mounted Sensitivity 2.06%ft±1.3%ft Working environment -10~+50(â?¤95%RH No congelation) Dimension 100*46mm

Model No. SR-812PC-4 Operating voltage DC9~35V Alarm temperature N/A Static current 13mA(NC);4mA(NO) Alarm current 9mA(NC);19mA(NO) Alarm output Relay output Installation Ceiling mounted Sensitivity 2.06%ft±1.3%ft Working environment -10~+50(â?¤95%RH No congelation) Dimension 100*

Operating voltage DC9~35V Alarm temperature 57 Static current 20uA Alarm current 35mA@DC12V;83m@DC24V Alarm output Remote LED indicator Installation Ceiling mounted Sensitivity 0.15dB/m(±0.03dB/M) Working environment -10~+50(â?¤95%RH No congelation) Dimension 100*46mm

Supplier: Fire alarm systems(detectors and fire panels ), escalator, baggage handling systems, video doorphone, electricity material, car park systems, x-ray , safety lighting systems, illumination material., new technology produces
Buyer: Fire alarm systems(detectors and fire panels ), escalator, baggage handling systems, video doorphone, electricity material, car park systems, x-ray , safety lighting systems, illumination material., new technology produces

Supplier: Smoke and co detectors, gas detector, pir motion detector, magnetic contacts and fire alarm bell
Services: Manufacturer

Conventional fire alarm smoke detector smoke probe sensor This device is photoeletronic detector uses a state-of-the-art optical sensing chamber. This smoke detector is compatible with all conventional fire alarm control panel Dual leds, two leds blink standby, provide 360dgree visibility With unique optical sensing chamber, engineered to sense smoke by a wide range of combustion sources. Unpolarized wire input to prevent the likelihood of wiring errors Specifications Operating voltage range: 9 to 28vdc volts non-polarized Standby current: 60µa @ 24 vdc Maximum alarm current (led on: ) 30ma @ 24 vdc Operating humidity range: 10% to 93% relative humidity, non-condensing Operating temperature range: 14°f to 122°f (-10°c to50°c) Adjustable sensitivity: 0.15ï½?0.3db/m Height: 2.2ë� (55 mm) installed in base Diameter: 4.0ë� (103 mm) Weight: 5.5 oz. (155 g)