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Hard Wired Alarms
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![Kidde-Fyrnetics-Slick-Optical-Mains-2SFW-Smoke-Alarms-Left-1x1](https://images.carriercms.com/image/upload/w_350,q_auto,f_auto/v1695711574/kidde/Lizzy%20-%20updated%20files/Png%20product%20images/Kidde-Fyrnetics-Slick-Optical-Mains-2SFW-Smoke-Alarms-Left-1x1.png)
Power Source: 230V AC
Sensor: Optical chamber with unique fast fit system
Battery Back Up: 9V Alkaline back up supplied
![Kidde-Fyrnetics-Slick-Optical-Mains-2SFW-Smoke-Alarms-Left-1x1](https://images.carriercms.com/image/upload/w_350,q_auto,f_auto/v1695711574/kidde/Lizzy%20-%20updated%20files/Png%20product%20images/Kidde-Fyrnetics-Slick-Optical-Mains-2SFW-Smoke-Alarms-Left-1x1.png)
Power Source: 230V AC
Sensor: Optical chamber with unique fast fit system
Battery Back Up: Built in Rechargeable lithium back up
![Kidde-Fyrnetics-Slick-Mains-3SFW-Heat-Alarm-Left-1x1](https://images.carriercms.com/image/upload/w_350,q_auto,f_auto/v1695711578/kidde/Lizzy%20-%20updated%20files/Png%20product%20images/Kidde-Fyrnetics-Slick-Mains-3SFW-Heat-Alarm-Left-1x1.png)
Power Source: 230V AC
Sensor: Optical chamber with unique fast fit system
Battery Back Up: 9V Alkaline back up supplied
![Kidde-Fyrnetics-Slick-Mains-3SFW-Heat-Alarm-Left-1x1](https://images.carriercms.com/image/upload/w_350,q_auto,f_auto/v1695711578/kidde/Lizzy%20-%20updated%20files/Png%20product%20images/Kidde-Fyrnetics-Slick-Mains-3SFW-Heat-Alarm-Left-1x1.png)
Power Source: 230V AC
Sensor: Thermistor (Thermal Resistor) sensor within detection unit
Battery Back Up: Built in Rechargeable lithium back up
![Kidde-Firex-Mains-KF30-Heat-Alarm-Left-1x1](https://images.carriercms.com/image/upload/w_350,q_auto,f_auto/v1695712821/kidde/Lizzy%20-%20updated%20files/Png%20product%20images/Kidde-Firex-Mains-KF30-Heat-Alarm-Left-1x1.png)
Power Source: 230V AC Mains
Sensor: Thermistor (Thermal Resistor) sensor within detection unit
Battery Back Up: Built in Rechargeable lithium back up
![Kidde-Firex-Mains-KF30-Heat-Alarm-Left-1x1](https://images.carriercms.com/image/upload/w_350,q_auto,f_auto/v1695712821/kidde/Lizzy%20-%20updated%20files/Png%20product%20images/Kidde-Firex-Mains-KF30-Heat-Alarm-Left-1x1.png)
Power Source: 230V AC Mains
Sensor: Thermistor (Thermal Resistor) sensor within detection unit
Battery Back Up: 9V Lithium back up supplied
![Kidde-Firex-Mains-KF30-Heat-Alarm-Left-1x1](https://images.carriercms.com/image/upload/w_350,q_auto,f_auto/v1695712821/kidde/Lizzy%20-%20updated%20files/Png%20product%20images/Kidde-Firex-Mains-KF30-Heat-Alarm-Left-1x1.png)
Power Source: 230V AC Mains
Sensor: Thermistor (Thermal Resistor) sensor within detection unit
Battery Back Up: 9V Alkaline back up supplied
![Kidde-Firex-Mains-Optical-KF20-Smoke-Alarm-Left-1x1](https://images.carriercms.com/image/upload/w_350,q_auto,f_auto/v1695712794/kidde/Lizzy%20-%20updated%20files/Png%20product%20images/Kidde-Firex-Mains-Optical-KF20-Smoke-Alarm-Left-1x1.png)
Power Source: 230V AC Mains
Sensor: Optical, circular lateral chamber with insect-resistant width slot entry portals and added bug screen mesh
Battery Back Up: Built in Rechargeable lithium back up
![Kidde-Firex-Mains-Optical-KF20-Smoke-Alarm-Left-1x1](https://images.carriercms.com/image/upload/w_350,q_auto,f_auto/v1695712794/kidde/Lizzy%20-%20updated%20files/Png%20product%20images/Kidde-Firex-Mains-Optical-KF20-Smoke-Alarm-Left-1x1.png)
Power Source: 230V AC Mains
Sensor: Optical, circular lateral chamber with insect-resistant width slot entry portals and added bug screen mesh
Battery Back Up: 9V Lithium back up supplied
![Kidde-Firex-Mains-Optical-KF20-Smoke-Alarm-Left-1x1](https://images.carriercms.com/image/upload/w_350,q_auto,f_auto/v1695712794/kidde/Lizzy%20-%20updated%20files/Png%20product%20images/Kidde-Firex-Mains-Optical-KF20-Smoke-Alarm-Left-1x1.png)
Power Source: 230V AC Mains
Sensor: Optical, circular lateral chamber with insect-resistant width slot entry portals and added bug screen mesh
Battery Back Up: 9V Alkaline back up supplied