Description
Less False Alarm
Wisualarm smoke alarm chammer adopt the advanced split-spectrum technology, that highly reduced 99% false alarms from vapor and dust.

Specification
Specification
Product Model | DHI-HY-SA30A |
---|---|
Battery Type | 10 Year Sealed Lithium |
Dimensions | φ98 mm × H43.1 mm (φ3.85" × H1.70") |
Operating Temperature | -10°C to +55°C (+14°F to +131°F) |
Relative Humidity | ≤95% RH (non condensing) |
Sound Output | 85dB (minimum) at 3m |
Warranty | 5 Years |
Net Weight | 0.17 kg |
FAQ
FAQ
How do I know when to replace the battery?
The smoke detector will usually emit a chirping sound when the battery is low, indicating it's time to replace it. It is recommended to test your smoke detector monthly and replace the battery at least once a year if it uses standard batteries.
How do I test my battery-operated smoke detector?
Press and hold the test button on the smoke detector until you hear a loud siren. This ensures that the battery and alarm are working properly. If the sound is weak or nonexistent, replace the battery immediately.
How do I maintain my battery-operated smoke detector?
Regular maintenance includes:
1. Testing the alarm monthly.
2. Replacing the battery at least once a year (or according to the manufacturer’s recommendations). 3. Cleaning the unit with a vacuum cleaner or a soft brush attachment to remove dust and debris.
4. Replacing the entire smoke detector every 10 years, as sensors can degrade over time.
1. Testing the alarm monthly.
2. Replacing the battery at least once a year (or according to the manufacturer’s recommendations). 3. Cleaning the unit with a vacuum cleaner or a soft brush attachment to remove dust and debris.
4. Replacing the entire smoke detector every 10 years, as sensors can degrade over time.
What is the type of smoke alarm, photoelectric or ionisation?
The smoke alarm uses photoelectric smoke sensor for responding quicker to smouldering fires and the dense smoke given off by foam filled furnishings or over heated PVC.
How long will I receive the parcel?
Generally speaking, order processing time is 1-3 working days and shipping time is 1-5 working days. Normally, you can receive it within 3-5 days after placing an order.