Product comparison · 2 smoke detectors

Dahua Technology DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired vs Dahua Technology HY-SA30A-R8 smoke detector Photoelectrical reflection detector Interconnectable Wireless

15specifications compared
5differ
10identical
15known for one product only

Key differences

The Dahua Technology HY-SA30A-R8 smoke detector Photoelectrical reflection detector Interconnectable 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). The Dahua Technology HY-SA30A-R8 smoke detector Photoelectrical reflection detector Interconnectable Wireless has 1.65 cm more diameter than the Dahua Technology DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired (9.8 cm vs 8.15 cm). The Dahua Technology DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired has 8.5 mm more height than the Dahua Technology HY-SA30A-R8 smoke detector Photoelectrical reflection detector Interconnectable Wireless (51.6 mm vs 43.1 mm). Connectivity technology: Wired on the Dahua Technology DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired, Wireless on the Dahua Technology HY-SA30A-R8 smoke detector Photoelectrical reflection detector Interconnectable Wireless.

Connectivity technology
- DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired:Wired
- HY-SA30A-R8 smoke detector Photoelectrical reflection detector Interconnectable Wireless:Wireless
Alarm decibels
- DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired:84 dB
- HY-SA30A-R8 smoke detector Photoelectrical reflection detector Interconnectable Wireless:85 dB
Diameter
- DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired:8.15 cm
- HY-SA30A-R8 smoke detector Photoelectrical reflection detector Interconnectable Wireless:9.8 cm
Height
- DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired:51.6 mm
- HY-SA30A-R8 smoke detector Photoelectrical reflection detector Interconnectable Wireless:43.1 mm
Weight
- DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired:110 g
- HY-SA30A-R8 smoke detector Photoelectrical reflection detector Interconnectable Wireless:138 g

Side by side

Differences highlightedShow differences only

Comparison of DHI-HY-SA40A, HY-SA30A-R8
30 specifications	A Dahua Technology DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired Model DHI-HY-SA40A View product	B Dahua Technology HY-SA30A-R8 smoke detector Photoelectrical reflection detector Interconnectable Wireless Model HY-SA30A-R8 View product
Features2 differ
Detector type	Photoelectrical reflection detector	Photoelectrical reflection detector
InterconnectableKnown for one	Unknown — not stated by the source	Yes
Connectivity technologyDiffers	Wired	Wireless
Best usesKnown for one	Unknown — not stated by the source	Home
BandwidthKnown for one	Unknown — not stated by the source	868 MHz
Test buttonKnown for one	Unknown — not stated by the source	Yes
Housing materialKnown for one	Unknown — not stated by the source	ABS
Product colour	White	White
Suitable for indoor use	Yes	Yes
Light alarm	Yes	Yes
LED indicators	Yes	Yes
Alarm decibelsDiffers	84 dB	85 dB
Alarm muteKnown for one	Unknown — not stated by the source	Yes
Maximum rangeKnown for one	Unknown — not stated by the source	3 m
Mounting typeKnown for one	Unknown — not stated by the source	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
Poweridentical
Power source	Battery	Battery
Battery life	10 year(s)	10 year(s)
Battery low indicationKnown for one	Unknown — not stated by the source	Yes
Battery type	CR123A	CR123A
Battery voltageKnown for one	Unknown — not stated by the source	3 V
Number of batteries supportedKnown for one	1	Unknown — not stated by the source
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 - 95%
Certificatesidentical
CertificationKnown for one	Unknown — not stated by the source	TÜV and CE
Weight & dimensions3 differ
DiameterDiffers	8.15 cm	9.8 cm
HeightDiffers	51.6 mm	43.1 mm
WeightDiffers	110 g	138 g
Batteryidentical
Battery technology	Lithium	Lithium

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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