Modern design style with replaceable 9V battery back up. LED indicated. Inter-connectable (hardwired) with up to 12 mains smoke detectors (50698) or heat detectors

• Thermistor heat sensor - designed to detect rate of increase in temperature
• Mains powered with replaceable 9 V battery back-up
• Interconnect up to 50 alarms with the RF interlink base or hardwire interconnect up to 12 SW1, Hw1 or CW1 alarms
• Class A2 heat detection provides advanced class A2 detection (54 - 70°C)
• Sounds a loud 85 dB alarm (3 m) and includes low battery warning feature
• 127mm x 127mm x 51.5mm