Smoke Detectors (Smoke Alarms) are a Council Requirement for all new homes, and we recommend these be hardwired into your Alarm System.
Not only does this save you having to remember to replace Batteries, but this ensures nobody sleeps through a potential fire as the Sirens of the Alarm will sound. Nobody can sleep through this.
Photoelectric Smoke Detectors are recommended by the NZ Fire Service as these have a sensing chamber which uses a beam of light and a light sensor. Smoke particles entering the chamber change the amount of light which reaches the sensor. The alarm sounds when the smoke density reaches a preset level.
Thermal or Heat Detectors can be installed in areas where Smoke Detectors are not suitable, such as a Garage or Workshop, Kitchen, or a Hallway near a Bathroom.