-Ionisation: Ionisation alarms are good at detecting flaming fires
– Photoelectric: Photoelectric are more effective at detecting smouldering fires (slow-burning, smokey fires).
Battery Smoke Alarm Versus Hardwired Smoke Alarm
9V BATTERY SMOKE ALARMS
9 volt battery smoke alarms are the cheapest option. However, the battery in these smoke alarms must be changed every year.
Ten Year Lithium Battery Only
These smoke alarms are battery powered, but the battery is designed to last for 10 years, meaning you don’t have to change the batteries.
HARDWIRED SMOKE ALARMS
Hardwired smoke alarms are powered by 240V mains power and also have a backup 9V battery. Keep in mind that the 9V battery still has to be replaced every year.
Hardwired + Rechargeable Battery
These alarms are hardwired to 240V mains power, and also have a ten year lithium ion backup battery.
Smoke Alarm Battery ReplacementSmoke alarms require you to replace the 9v battery every year. At Safe Fire And Electrical we will replace all your existing 9v batteries with brand new ones to ensure they comply
When and why was the smoke alarm legislation introduced?
On 1 May 2006, the NSW Government introduced new legislation following a series of fatal house fires.
This legislation mandated that all residential dwellings in NSW must have at least one working smoke alarm installed on each level of the home. This includes; owner occupied and rental properties, relocatable homes, caravans and campervans or any other residential building where people sleep. Smoke alarms must comply with Australian Standard 3786 (AS3786), which should be clearly marked on the packaging.