Product comparison · 2 smoke detectors

Dahua Technology HY-SA21A-W2 Photoelectrical reflection detector Wireless vs LogiLink SC0002 smoke detector

6specifications compared
3differ
3identical
22known for one product only

Key differences

The Dahua Technology HY-SA21A-W2 Photoelectrical reflection detector Wireless has 5 dB more alarm decibels than the LogiLink SC0002 smoke detector (90 dB vs 85 dB). Battery life: 3 year(s) on the Dahua Technology HY-SA21A-W2 Photoelectrical reflection detector Wireless, 5 year(s) on the LogiLink SC0002 smoke detector. Battery technology: Lithium on the Dahua Technology HY-SA21A-W2 Photoelectrical reflection detector Wireless, Alkaline on the LogiLink SC0002 smoke detector.

Alarm decibels
- HY-SA21A-W2 Photoelectrical reflection detector Wireless:90 dB
- SC0002 smoke detector:85 dB
Battery life
- HY-SA21A-W2 Photoelectrical reflection detector Wireless:3 year(s)
- SC0002 smoke detector:5 year(s)
Battery technology
- HY-SA21A-W2 Photoelectrical reflection detector Wireless:Lithium
- SC0002 smoke detector:Alkaline

Side by side

Differences highlightedShow differences only

Comparison of HY-SA21A-W2, SC0002
28 specifications	A Dahua Technology HY-SA21A-W2 Photoelectrical reflection detector Wireless Model HY-SA21A-W2 View product	B LogiLink SC0002 smoke detector Model SC0002 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
Test buttonKnown for one	Unknown — not stated by the source	Yes
Power1 differ
Input voltageKnown for one	3 V	Unknown — not stated by the source
Battery lifeDiffers	3 year(s)	5 year(s)
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 & dimensionsidentical
DiameterKnown for one	9.8 cm	Unknown — not stated by the source
HeightKnown for one	43.1 mm	Unknown — not stated by the source
WeightKnown for one	140 g	Unknown — not stated by the source
Battery1 differ
Battery technologyDiffers	Lithium	Alkaline
Sustainabilityidentical
Compliance certificatesKnown for one	CE	Unknown — not stated by the source
Certificatesidentical
CertificationKnown for one	Unknown — not stated by the source	EN14604

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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