Appleby D230HA Heat Alarm 230V Mains Powered 123mm Dia Thermoplastic 9V Alkaline Battery Back Up

• · 9V Alkaline battery backup included
• · Self test on sensor & self diagnostic feature
• · Easy Installation
• · Power Supply: AC
• · Diameter: 123 mm
• · Battery Size: 9V
• · Voltage: 230 V
• · Standards: BS 5446-2
• · Warranty: 6 Years