Updated 27 Apr 2018
Sentech
Micro SK-20NZ
Bottom line: This photoelectric smoke alarm is good at detecting both smouldering and flaming fires. It has a 10-year battery.
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Test results
Overall score
Very good
80
Good points
- Good at detecting smouldering fires.
- Good at detecting flaming fires.
- Easy to use.
- Has a 10-year battery.
But
No obvious bad points.
How we test
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 (/10) 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.
Key data
Test results
Smouldering fire sensitivity
Good
Flaming fire sensitivity
Good
Ease of use
7.0
Model
Avg price
$55
Alarm type
Photoelectric
Noise (dBA)
93
Battery type
Sealed Lithium
Size
Mini
Features
Battery life (years)
10
Alarm life (years)
10
Warranty (yrs)
5
Hush period (min)
9
Carbon monoxide alarm
×
Alarms can be linked
No
Voice alerts
×
More Info
Availability
Electrical trade stores.
