We tested 20 models to see which respond fastest to smoke.
This report is free thanks to funding from Tenancy Services.
Consumer NZ is non-profit. To help us get a fairer deal for all New Zealand consumers you can make a donation. We’ll use your contribution to investigate consumer issues and work for positive change.
Overall score is based on smouldering and flaming fire sensitivity.
“Good” or “OK” meant the alarm sounded quickly enough to alert you to danger.
“Poor” meant the alarm took significantly longer to sound.
“Extreme” sensitivity meant the alarm sounded so quickly they are more likely to issue false alarms.
Ease of use includes instructions and ease of installation.
See "About our test" for more information.
Noise is measured in a quiet room 3m from the alarm.
Price is from a March 2018 price survey.
Small and inconspicuous and easy to install
I purchased 9 of these Cavius 10yr units and installed in rental properties and holiday home about 2 years ago. Three units have since failed. 1 gave occasional false alarms and was replaced same brand and fine after that. Two more recently have had battery failures and had to be replaced. Starting to loose confidence they will last the distance.
No, this product has too many drawbacks.