ORCA Photoelectric Smoke Alarm
For Kitchens, Living Areas and Bedrooms
- 10 year longlife 9v lithium battery
- Photoelectric Sensor
- Complies with NZ Building Code, April 2003
- Easily installed
- Hush and test button
- 85db extra loud warning tone
Photoelectric smoke alarms are generally more responsive to fires that begin with a long period of smoldering (called “smoldering fires”).
How they work: Photoelectric-type alarms aim a light source into a sensing chamber at an angle away from the sensor. Smoke enters the chamber, reflecting light onto the light sensor; triggering the alarm.
Ionization smoke alarms are generally more responsive to flaming fires.
How they work: Ionization-type smoke alarms have a small amount of radioactive material between two electrically charged plates, which ionizes the air and causes current to flow between the plates. When smoke enters the chamber, it disrupts the flow of ions, thus reducing the flow of current and activating the alarm.
Also available: Bedroom & Hallways, and a Value Twin Pack, both 9v batteries with a 10 year warranty.