Product comparison · 2 smoke detectors

Dahua Technology DHI-HY-SA21A-W2(868) smoke detector Photoelectrical reflection detector Wireless vs Dahua Technology FAD122A-W smoke detector Photoelectrical reflection detector Wireless

14specifications compared
6differ
8identical
14known for one product only

Key differences

The Dahua Technology DHI-HY-SA21A-W2(868) smoke detector Photoelectrical reflection detector Wireless has 435.3 MHz more bandwidth than the Dahua Technology FAD122A-W smoke detector Photoelectrical reflection detector Wireless (868.3 MHz vs 433 MHz). The Dahua Technology DHI-HY-SA21A-W2(868) smoke detector Photoelectrical reflection detector Wireless has 10 dB more alarm decibels than the Dahua Technology FAD122A-W smoke detector Photoelectrical reflection detector Wireless (90 dB vs 80 dB). The Dahua Technology DHI-HY-SA21A-W2(868) smoke detector Photoelectrical reflection detector Wireless has 850 m more maximum range than the Dahua Technology FAD122A-W smoke detector Photoelectrical reflection detector Wireless (1000 m vs 150 m).

Bandwidth
- DHI-HY-SA21A-W2(868) smoke detector Photoelectrical reflection detector Wireless:868.3 MHz
- FAD122A-W smoke detector Photoelectrical reflection detector Wireless:433 MHz
Alarm decibels
- DHI-HY-SA21A-W2(868) smoke detector Photoelectrical reflection detector Wireless:90 dB
- FAD122A-W smoke detector Photoelectrical reflection detector Wireless:80 dB
Maximum range
- DHI-HY-SA21A-W2(868) smoke detector Photoelectrical reflection detector Wireless:1000 m
- FAD122A-W smoke detector Photoelectrical reflection detector Wireless:150 m
Diameter
- DHI-HY-SA21A-W2(868) smoke detector Photoelectrical reflection detector Wireless:9.8 cm
- FAD122A-W smoke detector Photoelectrical reflection detector Wireless:10.3 cm
Height
- DHI-HY-SA21A-W2(868) smoke detector Photoelectrical reflection detector Wireless:43.1 mm
- FAD122A-W smoke detector Photoelectrical reflection detector Wireless:41 mm
Weight
- DHI-HY-SA21A-W2(868) smoke detector Photoelectrical reflection detector Wireless:140 g
- FAD122A-W smoke detector Photoelectrical reflection detector Wireless:110 g

Side by side

Differences highlightedShow differences only

Comparison of DHI-HY-SA21A-W2(868), FAD122A-W
28 specifications	A Dahua Technology DHI-HY-SA21A-W2(868) smoke detector Photoelectrical reflection detector Wireless Model DHI-HY-SA21A-W2(868) View product	B Dahua Technology FAD122A-W smoke detector Photoelectrical reflection detector Wireless Model FAD122A-W View product
Features3 differ
InterconnectableKnown for one	No	Unknown — not stated by the source
BandwidthDiffers	868.3 MHz	433 MHz
Housing materialKnown for one	ABS	Unknown — not stated by the source
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	Alarm, Fault, Power	Unknown — not stated by the source
Alarm decibelsDiffers	90 dB	80 dB
Alarm muteKnown for one	Yes	Unknown — not stated by the source
Maximum rangeDiffers	1000 m	150 m
Mounting typeKnown for one	Surface-mounted	Unknown — not stated by the source
Poweridentical
Input voltageKnown for one	3 V	Unknown — not stated by the source
Battery low indicationKnown for one	Yes	Unknown — not stated by the source
Battery typeKnown for one	CR123A	Unknown — not stated by the source
Compatible battery sizesKnown for one	CR123A	Unknown — not stated by the source
Battery voltageKnown for one	Unknown — not stated by the source	3.6 V
Certificatesidentical
CertificationKnown for one	EN 14604:2005+AC:2008	Unknown — not stated by the source
Weight & dimensions3 differ
DiameterDiffers	9.8 cm	10.3 cm
HeightDiffers	43.1 mm	41 mm
WeightDiffers	140 g	110 g
Sustainabilityidentical
Compliance certificatesKnown for one	CE	Unknown — not stated by the source

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.

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