OG10 Mains Ionisation Smoke Alarm

Part #: OG10

Mains-powered ionisation smoke alarm that can be interconnected with up to 18 other mains alarms, be they ionisation, optical or heat. Once interconnected, the detection of the relevant danger by an individual unit will sound across all the connected alarms.

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  • Interconnect with up to 18 hard-wired alarms – all alarms sound if danger is detected
  • Alarm memory – identifies source unit within interconnecting network
  • Reduced energy consumption – lower lifetime running costs
  • Combined Hush/Test button allows regular testing of alarm function and can be used to temporarily silence nuisance alarms
  • Auto reset after activation
  • Tamper-resistant locking device prevents unauthorised removal without the use of a tool
  • Mains operation – 9V Alkaline back-up battery supplied as standard


Ionisation alarms are for use in areas where there is danger from fast-flaming fires.
This mains-powered unit complies with AS 3786:2014 standard and should be installed by
a qualified electrician. It can be used throughout the home, except in the kitchen where
a Heat alarm is recommended.


Feature Description
Model OG10
Power Supply 240V mains-powered with 9V Alkaline battery back-up
Temperature Range 0ºC to + 40ºC
Humidity Range Up to 93% Relative Humidity (RH) non-condensing
Storage and Transport -20ºC to +60ºC and 5–95% relative humidity (RH) non-condensing
Alarm Dimensions 127 x 127 x 39mm
Bracket Dimensions 133 x 133 x 6mm
Alarm Weight 231g
Warranty 10 years
Approvals AS 3786:2014
Attribute Description
Sensor Ionisation, circular metal chamber with 24-slot entry portals
Source Americium 241 (0.9 microcurie)
Button Test Simulates the effect of smoke within the sensing chamber, checks electronics and sounder
Automatic Self-test Circuitry is tested and unit beeps (chirps) if fault is detected
Supply Voltage 240V AC 50HZ, DC battery back up (9V battery)
Power Consumption < 80mA
Connection Push-in/snap-fit type connector with 150mm long flying leads (supplied)
Battery Back-up User replaceable alkaline 9V battery (522/6LR61)
Power-on Indicator Alarm Sounder Continuous green LED Electronic piezo-electric sounder (T3 pattern sound – three pulses – space – three pulses)
Sound Output 85 dB (A) minimum at 3 metres
Alarm Frequency 3.2 kHz typical
Dust Protection In-built foam gasket in rear of alarm to prevent dust ingress into rear of the alarm
Alarm Status Red LED flashes approx once every five minutes = normal operation Red LED flashes once a second = sensing smoke (sounder alarm sounds) Red LED flashes once every ten seconds = in hush condition (auto-reset after 10 minutes)
Interconnection Up to 18 units (smoke and heat) can be hardwire interconnected
Fixing Mounting bracket ring supplied with two ‘T’ slot fitting option 57mm spacing to a maximum of 90mm for standard screw fittings on back boxes Bracket has 50mm diameter central access hole for cabling
Plastics used NORYL – Cover, main body and mounting bracket
Lead-Free Status All mains alarms are lead-free

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