Model No.: 808
Photoelectric Smoke Alarm
Work Current:less than 10 µA
SPL more than90dB
Work Temp.:minus10 Deg. To 40 Deg.
Operat. Voltage:DC9V
N.W.: 5.8KG
Q'ty/box: 60PCS
Packing Size(cm): 46x35x27
Be used separately as well as in combination of up 40 items

Model No.: 908
Photoelectric Smoke Alarm
Work Current:less than 10 µA
SPL more than90d
Work Temp.:Minus 10 Deg. To 40 Deg.
Operat. Voltage:DC9V
N.W.: 6.5KG
GH.W.: 9.5KG
Q'ty/box: 60PCS
Packing Size(cm): 46x35x27
Be used separately as well as in combination of up 40 items

Model No.: 104
The detector has a >85dB onboard siren and LED indication.
Interconnection feature to other 104's. This enables all units to sound their
Horns in the event of one of the 104's detecting a potential fire condition.
The Security Panel connection feature can be used in the event of there not being
anyone in the vicinity of the detectors for the audible horn to be heard, in such instances,
the unit may be connected to a security panel to alert the relative personnel.
The unit has a built in test button for testing.
10 year Battery life.
Detector Type: Optical / Photoelectric 
Physical Dimensions: ?104mm x 50mm 
Weight: 140g 
Operation Voltage: 6 Vdc*12 Vdc 
Operation Temperature: -10oCto + 60oC 
Supply Voltage: 9*12 Vdc 
Lithium Battery (10 Year Life)  
Maximum Quiescent Current: < 15uA 
Operational Indication : Flashing Led every 45 Seconds 
Fire Pre-Warning Condition: Flashing Led every 0.5 Seconds 
Local Fire Condition: Flashing Led + Pulsating Sounder 
Remote Fire Condition: Pulsating Sounder Only 
Battery Low Condition: Beep or Chirp Sound Simultaneously With Led Flash 
Chamber Degradation (Dirty): Beep or Chirp Sound Halfway Between Led Flash 
Sound Pressure: > 85dB 
Test Facility: Push Button 
Inter-Connection Capabilities: 40 Units 
Security Panel Connection: Normally Open Relay Contact 

Model No : 928N
The product is a new type of photoelectric smoke alarm,When it detects smoke twice,it will output signal immediately and trigger connected unit to work,which tell you in advance that fire will occurs and avoid unwanted loss,and take you safety and convenience.
SPECIFICATION: Power supply: DC12V-DC24V
Static current
Working current: 16mA-17mA
Detecting time: detect once every about 5s
Detecting smoke method: it works only when it detects smoke twice.