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The Legrand 643091 is a wireless photoelectric smoke alarm built for reliable residential protection. It detects slow-burning fires using a photoelectric sensor and runs on a sealed 10-year lithium battery—no wiring or replacements needed. Installation is quick with the included surface-mount base, suitable for ceilings or walls. The alarm also features a loud >85dBA siren and LED indicators for battery, alarm, and RF status.
You can wirelessly interconnect up to 20 units using 434.2 MHz RF—ideal for full home coverage without cabling. A large test/hush button makes it easy to operate, while the sealed insect-resistant mesh and UV-stabilised housing ensure long-term performance in Australian conditions.
Q: Can I connect this alarm to others in my house?
A: Yes, it wirelessly interconnects with up to 20 units.
Q: Does it require mains power or wiring?
A: No, it runs on a 10-year sealed battery with no cabling required.
Q: Is this alarm suitable for bedrooms and hallways?
A: Yes, it complies with ISO 8201 and AS 3786:2014 standards.
(643091)
Warranty starts from Invoice Date
Domestic Use: 5 Year
Commercial Use: 5 Year
Warranty Method: Return to Sparky Direct
| Specification | Details |
|---|---|
| Cat. No. | 643091 |
| Colour | White |
| Sensor Type | Photoelectric |
| Mounting Type | Surface (ceiling or wall) - screws |
| Interconnect Type | Wireless (up to 20 interconnected smoke alarms) |
| Radio Frequency (RF) | 434.2 MHz |
| Power Source | Battery powered |
| Battery Type | Non-replaceable 10 year lithium battery |
| Product Size | Ø 113 x 39 mm |
| Temperature Range | 0°C to +40°C |
| Humidity Range | 10-95% at 20°C (non-condensing) |
| Alarm Volume | > 85 dBA at 3 metres |
| Recommended Lifespan | 10 Years |
| Alarm Pattern | ISO 8201 |
| Quality System | ISO 9001 |
These specifications and characteristics outline physical, mechanical, electrical details.
| Brand | Legrand |
| SKU | 643091 |
| Model # | 643091 |
| Barcode # | 9321001511489 |
| Package Weight | 0.113kg |
| Package Width | 0.120m |
| Package Height | 0.120m |
| Package Length | 0.120m |
| TYPE | VALUE |
|---|---|
| Type | Smoke Alarm |
| Brand | Legrand |
| Colour | White |
| Installation Area | Indoor |
| Battery Type | Non-replaceable 10 year lithium battery |
| Mount Type | Surface Mount |
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