Product comparison · 2 smoke detectors

Dahua Technology HY-SA21A-W2 Photoelectrical reflection detector Wireless vs Hama 00176508 smoke detector

6specifications compared
3differ
3identical
25known for one product only

Key differences

The Dahua Technology HY-SA21A-W2 Photoelectrical reflection detector Wireless has 5 dB more alarm decibels than the Hama 00176508 smoke detector (90 dB vs 85 dB). The Hama 00176508 smoke detector has 0.2 cm more diameter than the Dahua Technology HY-SA21A-W2 Photoelectrical reflection detector Wireless (10 cm vs 9.8 cm). The Dahua Technology HY-SA21A-W2 Photoelectrical reflection detector Wireless has 8.1 mm more height than the Hama 00176508 smoke detector (43.1 mm vs 35 mm).

Alarm decibels
- HY-SA21A-W2 Photoelectrical reflection detector Wireless:90 dB
- 00176508 smoke detector:85 dB
Diameter
- HY-SA21A-W2 Photoelectrical reflection detector Wireless:9.8 cm
- 00176508 smoke detector:10 cm
Height
- HY-SA21A-W2 Photoelectrical reflection detector Wireless:43.1 mm
- 00176508 smoke detector:35 mm

Side by side

Differences highlightedShow differences only

Comparison of HY-SA21A-W2, 00176508
31 specifications	A Dahua Technology HY-SA21A-W2 Photoelectrical reflection detector Wireless Model HY-SA21A-W2 View product	B Hama 00176508 smoke detector Model 00176508 View product
Features1 differ
Detector typeKnown for one	Photoelectrical reflection detector	Unknown — not stated by the source
Connectivity technologyKnown for one	Wireless	Unknown — not stated by the source
BandwidthKnown for one	868.3 MHz	Unknown — not stated by the source
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	85 dB
Alarm muteKnown for one	Yes	Unknown — not stated by the source
Maximum rangeKnown for one	1000 m	Unknown — not stated by the source
Easy to installKnown for one	Unknown — not stated by the source	Yes
Poweridentical
Input voltageKnown for one	3 V	Unknown — not stated by the source
Battery lifeKnown for one	3 year(s)	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	9 V
Number of batteries supportedKnown for one	Unknown — not stated by the source	1
Operational conditionsidentical
Operating temperature (T-T)Known for one	-10 - 55 °C	Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	0 - 95%	Unknown — not stated by the source
Weight & dimensions2 differ
DiameterDiffers	9.8 cm	10 cm
HeightDiffers	43.1 mm	35 mm
WeightKnown for one	140 g	Unknown — not stated by the source
Batteryidentical
Battery technologyKnown for one	Lithium	Unknown — not stated by the source
Sustainabilityidentical
Compliance certificatesKnown for one	CE	Unknown — not stated by the source
Packaging dataidentical
Package widthKnown for one	Unknown — not stated by the source	155 mm
Package depthKnown for one	Unknown — not stated by the source	116 mm
Package heightKnown for one	Unknown — not stated by the source	50 mm
Package weightKnown for one	Unknown — not stated by the source	168 g

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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