Product comparison · 2 smoke detectors

Dahua Technology DHI-HY-SA21A-W2(868) smoke detector Photoelectrical reflection detector Wireless vs Dahua Technology HY-SA30A-R8 smoke detector Photoelectrical reflection detector Interconnectable Wireless

24specifications compared
8differ
16identical
8known for one product only

Key differences

Interconnectable
- DHI-HY-SA21A-W2(868) smoke detector Photoelectrical reflection detector Wireless:No
- HY-SA30A-R8 smoke detector Photoelectrical reflection detector Interconnectable Wireless:Yes
Bandwidth
- DHI-HY-SA21A-W2(868) smoke detector Photoelectrical reflection detector Wireless:868.3 MHz
- HY-SA30A-R8 smoke detector Photoelectrical reflection detector Interconnectable Wireless:868 MHz
LED indicators
- DHI-HY-SA21A-W2(868) smoke detector Photoelectrical reflection detector Wireless:Alarm, Fault, Power
- HY-SA30A-R8 smoke detector Photoelectrical reflection detector Interconnectable Wireless:Yes
Alarm decibels
- DHI-HY-SA21A-W2(868) smoke detector Photoelectrical reflection detector Wireless:90 dB
- HY-SA30A-R8 smoke detector Photoelectrical reflection detector Interconnectable Wireless:85 dB
Maximum range
- DHI-HY-SA21A-W2(868) smoke detector Photoelectrical reflection detector Wireless:1000 m
- HY-SA30A-R8 smoke detector Photoelectrical reflection detector Interconnectable Wireless:3 m
Battery life
- DHI-HY-SA21A-W2(868) smoke detector Photoelectrical reflection detector Wireless:3 year(s)
- HY-SA30A-R8 smoke detector Photoelectrical reflection detector Interconnectable Wireless:10 year(s)
Certification
- DHI-HY-SA21A-W2(868) smoke detector Photoelectrical reflection detector Wireless:EN 14604:2005+AC:2008
- HY-SA30A-R8 smoke detector Photoelectrical reflection detector Interconnectable Wireless:TÜV and CE
Weight
- DHI-HY-SA21A-W2(868) smoke detector Photoelectrical reflection detector Wireless:140 g
- HY-SA30A-R8 smoke detector Photoelectrical reflection detector Interconnectable Wireless:138 g

Side by side

Differences highlightedShow differences only

Comparison of DHI-HY-SA21A-W2(868), HY-SA30A-R8
32 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 HY-SA30A-R8 smoke detector Photoelectrical reflection detector Interconnectable Wireless Model HY-SA30A-R8 View product
Features5 differ
Detector type	Photoelectrical reflection detector	Photoelectrical reflection detector
InterconnectableDiffers	No	Yes
Connectivity technology	Wireless	Wireless
Best usesKnown for one	Unknown — not stated by the source	Home
BandwidthDiffers	868.3 MHz	868 MHz
Test buttonKnown for one	Unknown — not stated by the source	Yes
Housing material	ABS	ABS
Product colour	White	White
Suitable for indoor use	Yes	Yes
Light alarm	Yes	Yes
LED indicatorsDiffers	Alarm, Fault, Power	Yes
Alarm decibelsDiffers	90 dB	85 dB
Alarm mute	Yes	Yes
Maximum rangeDiffers	1000 m	3 m
Mounting type	Surface-mounted	Surface-mounted
Number of simultaneously connected devices (max)Known for one	Unknown — not stated by the source	24
Easy to installKnown for one	Unknown — not stated by the source	Yes
Power1 differ
Power source	Battery	Battery
Battery lifeDiffers	3 year(s)	10 year(s)
Battery low indication	Yes	Yes
Battery type	CR123A	CR123A
Battery voltageKnown for one	Unknown — not stated by the source	3 V
Input voltageKnown for one	3 V	Unknown — not stated by the source
Compatible battery sizesKnown for one	CR123A	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)	-10 - 55 °C	-10 - 55 °C
Operating relative humidity (H-H)	0 - 95%	0 - 95%
Certificates1 differ
CertificationDiffers	EN 14604:2005+AC:2008	TÜV and CE
Weight & dimensions1 differ
Diameter	9.8 cm	9.8 cm
Height	43.1 mm	43.1 mm
WeightDiffers	140 g	138 g
Batteryidentical
Battery technology	Lithium	Lithium
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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