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by Red Arrow
Mains Heat Alarm 9V Battery Back Up is available for £39.99 at Debenhams.
Available at Debenhams
A thermistor heat alarm that is operated from the mains supply in your home. 220-240V AC with 9V DC battery backup. Designed with a quick fit base and rapidly detecting NTC Thermistor for detecting temperature increases keeping your home and loved ones safe. Interlink up to 40 Red Arrow devices (wired or radio frequency connection).
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