Product comparison · 2 smoke detectors

Dahua Technology DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired vs Techly I-ALARM-SMOKE smoke detector Photoelectrical reflection detector Wireless

6specifications compared
2differ
4identical
17known for one product only

Key differences

The Techly I-ALARM-SMOKE smoke detector Photoelectrical reflection detector Wireless has 1 dB more alarm decibels than the Dahua Technology DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired (85 dB vs 84 dB). Connectivity technology: Wired on the Dahua Technology DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired, Wireless on the Techly I-ALARM-SMOKE smoke detector Photoelectrical reflection detector Wireless.

Connectivity technology
- DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired:Wired
- I-ALARM-SMOKE smoke detector Photoelectrical reflection detector Wireless:Wireless
Alarm decibels
- DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired:84 dB
- I-ALARM-SMOKE smoke detector Photoelectrical reflection detector Wireless:85 dB

Side by side

Differences highlightedShow differences only

Comparison of DHI-HY-SA40A, I-ALARM-SMOKE
23 specifications	A Dahua Technology DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired Model DHI-HY-SA40A View product	B Techly I-ALARM-SMOKE smoke detector Photoelectrical reflection detector Wireless Model I-ALARM-SMOKE View product
Features2 differ
Detector type	Photoelectrical reflection detector	Photoelectrical reflection detector
Connectivity technologyDiffers	Wired	Wireless
Product colour	White	White
Suitable for indoor useKnown for one	Yes	Unknown — not stated by the source
Light alarmKnown for one	Yes	Unknown — not stated by the source
LED indicatorsKnown for one	Yes	Unknown — not stated by the source
Alarm decibelsDiffers	84 dB	85 dB
Maximum rangeKnown for one	Unknown — not stated by the source	3 m
Poweridentical
Power source	Battery	Battery
Battery lifeKnown for one	10 year(s)	Unknown — not stated by the source
Battery typeKnown for one	CR123A	Unknown — not stated by the source
Number of batteries supportedKnown for one	1	Unknown — not stated by the source
Battery voltageKnown for one	Unknown — not stated by the source	9 V
Operational conditionsidentical
Operating temperature (T-T)	-10 - 55 °C	-10 - 55 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	0 - 80%
Weight & dimensionsidentical
DiameterKnown for one	8.15 cm	Unknown — not stated by the source
HeightKnown for one	51.6 mm	Unknown — not stated by the source
WeightKnown for one	110 g	Unknown — not stated by the source
WidthKnown for one	Unknown — not stated by the source	128 mm
DepthKnown for one	Unknown — not stated by the source	38 mm
Batteryidentical
Battery technologyKnown for one	Lithium	Unknown — not stated by the source
Packaging contentidentical
ManualKnown for one	Unknown — not stated by the source	Yes
Packaging dataidentical
Quantity per packKnown for one	Unknown — not stated by the source	1 pc(s)

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

More smoke detector comparisons

All smoke detector comparisons