Product comparison · 2 smoke detectors

Dahua Technology DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired vs Digicom 8D5785DA smoke detector Optical detector Wireless

10specifications compared
7differ
3identical
15known for one product only

Key differences

The Digicom 8D5785DA smoke detector Optical detector Wireless has 11 dB more alarm decibels than the Dahua Technology DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired (95 dB vs 84 dB). The Digicom 8D5785DA smoke detector Optical detector Wireless has 2.85 cm more diameter than the Dahua Technology DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired (11 cm vs 8.15 cm). The Dahua Technology DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired has 19.6 mm more height than the Digicom 8D5785DA smoke detector Optical detector Wireless (51.6 mm vs 32 mm). Detector type: Photoelectrical reflection detector on the Dahua Technology DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired, Optical detector on the Digicom 8D5785DA smoke detector Optical detector Wireless. Connectivity technology: Wired on the Dahua Technology DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired, Wireless on the Digicom 8D5785DA smoke detector Optical detector Wireless.

Connectivity technology
- DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired:Wired
- 8D5785DA smoke detector Optical detector Wireless:Wireless
Alarm decibels
- DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired:84 dB
- 8D5785DA smoke detector Optical detector Wireless:95 dB
Battery life
- DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired:10 year(s)
- 8D5785DA smoke detector Optical detector Wireless:1 year(s)
Operating temperature (T-T)
- DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired:-10 - 55 °C
- 8D5785DA smoke detector Optical detector Wireless:0 - 50 °C
Diameter
- DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired:8.15 cm
- 8D5785DA smoke detector Optical detector Wireless:11 cm
Height
- DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired:51.6 mm
- 8D5785DA smoke detector Optical detector Wireless:32 mm

Side by side

Differences highlightedShow differences only

Comparison of DHI-HY-SA40A, 8D5785DA
25 specifications	A Dahua Technology DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired Model DHI-HY-SA40A View product	B Digicom 8D5785DA smoke detector Optical detector Wireless Model 8D5785DA View product
Features3 differ
Detector typeDiffers	Photoelectrical reflection detector	Optical detector
Connectivity technologyDiffers	Wired	Wireless
BandwidthKnown for one	Unknown — not stated by the source	868 MHz
Test buttonKnown for one	Unknown — not stated by the source	Yes
Alarm decibelsDiffers	84 dB	95 dB
Maximum rangeKnown for one	Unknown — not stated by the source	50 m
Mounting typeKnown for one	Unknown — not stated by the source	Surface-mounted
Placement supportedKnown for one	Unknown — not stated by the source	Horizontal
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	Yes	Unknown — not stated by the source
Power1 differ
Battery lifeDiffers	10 year(s)	1 year(s)
Battery voltageKnown for one	Unknown — not stated by the source	9 V
Compatible battery sizesKnown for one	Unknown — not stated by the source	9v
Battery typeKnown for one	CR123A	Unknown — not stated by the source
Operational conditions1 differ
Operating temperature (T-T)Differs	-10 - 55 °C	0 - 50 °C
Weight & dimensions2 differ
DiameterDiffers	8.15 cm	11 cm
HeightDiffers	51.6 mm	32 mm
WeightKnown for one	110 g	Unknown — not stated by the source
Packaging dataidentical
Quantity per packKnown for one	Unknown — not stated by the source	1 pc(s)
Package typeKnown for one	Unknown — not stated by the source	Box
Batteryidentical
Battery technologyKnown for one	Lithium	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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