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SMOKE ALARM SENSOR TECHNOLOGY
Thermoptek
®
technology combines the very latest in optical sensing with a thermal enhancement
providing a fast reaction to both fast flaming and slow smouldering fires in a single alarm. Thermoptek
technology constantly monitors for temperature change. If a rate of temperature rise is detected the
sensitivity of the smoke alarm is increased, providing a quicker response time to both fire types.
HEAT ALARM SENSOR TECHNOLOGY
Thermistek™ technology incorporates a unique radiant heat dish (patent pending) to heighten
performance when exposed to a radiant heat source in real fire situations. Constantly monitoring
for temperature change, if an increase in temperature is detected, the rate of rise is measured and if
predicted to exceed a pre-determined threshold will sound the alarm. This predictive quality provides
a quicker response time in rapidly increasing temperatures.
Heat alarms are designed for areas where dust and fumes may trigger frequent nuisance alarms in
conventional smoke alarms - ideal for attics, garages and kitchens. The HM-SN-1 / WHM-SN-1 are
fixed point heat alarms using Thermistek sensing technology. All alarms are approved to class A1 and
will activate when the temperature reaches a preset range of 54 °C to 65 °C.
LITHIUM BATTERY TECHNOLOGY
All SONA mains powered smoke and heat alarms have a built in, sealed for life lithium battery (back-
up); designed to power the alarm in the event of a mains failure.
DO NOT
:
• Expose this alarm to moisture, dripping, splashing, steam or condensation.
• Paint the alarm.
• Install heat alarms in escape routes instead of smoke alarms.
• Test your alarm with a naked flame. The test button tests the alarm’s full functionality.
• Ignore any alarm in the network if it is sounding, it is warning you of a potentially hazardous
situation.
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