Product comparison · 2 smoke detectors

Dahua Technology DH-YJ104 smoke detector Optical beam detector Wired vs Dahua Technology DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired

8specifications compared
6differ
2identical
12known for one product only

Key differences

The Dahua Technology DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired has 82.2 dB more alarm decibels than the Dahua Technology DH-YJ104 smoke detector Optical beam detector Wired (84 dB vs 1.8 dB). The Dahua Technology DH-YJ104 smoke detector Optical beam detector Wired has 4.15 cm more diameter than the Dahua Technology DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired (12.3 cm vs 8.15 cm). The Dahua Technology DH-YJ104 smoke detector Optical beam detector Wired has 190 g more weight than the Dahua Technology DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired (300 g vs 110 g). Detector type: Optical beam detector on the Dahua Technology DH-YJ104 smoke detector Optical beam detector Wired, Photoelectrical reflection detector on the Dahua Technology DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired. Power source: DC on the Dahua Technology DH-YJ104 smoke detector Optical beam detector Wired, Battery on the Dahua Technology DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired.

Alarm decibels
- DH-YJ104 smoke detector Optical beam detector Wired:1.8 dB
- DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired:84 dB
Power source
- DH-YJ104 smoke detector Optical beam detector Wired:DC
- DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired:Battery
Operating temperature (T-T)
- DH-YJ104 smoke detector Optical beam detector Wired:-35 - 65 °C
- DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired:-10 - 55 °C
Diameter
- DH-YJ104 smoke detector Optical beam detector Wired:12.3 cm
- DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired:8.15 cm
Weight
- DH-YJ104 smoke detector Optical beam detector Wired:300 g
- DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired:110 g

Side by side

Differences highlightedShow differences only

Comparison of DH-YJ104, DHI-HY-SA40A
20 specifications	A Dahua Technology DH-YJ104 smoke detector Optical beam detector Wired Model DH-YJ104 View product	B Dahua Technology DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired Model DHI-HY-SA40A View product
Features2 differ
Detector typeDiffers	Optical beam detector	Photoelectrical reflection detector
Connectivity technology	Wired	Wired
Product colour	White	White
Suitable for indoor useKnown for one	Unknown — not stated by the source	Yes
Light alarmKnown for one	Unknown — not stated by the source	Yes
LED indicatorsKnown for one	Unknown — not stated by the source	Yes
Alarm decibelsDiffers	1.8 dB	84 dB
Maximum rangeKnown for one	100 m	Unknown — not stated by the source
Power1 differ
Power sourceDiffers	DC	Battery
Battery lifeKnown for one	Unknown — not stated by the source	10 year(s)
Battery typeKnown for one	Unknown — not stated by the source	CR123A
Number of batteries supportedKnown for one	Unknown — not stated by the source	1
Input voltageKnown for one	24 V	Unknown — not stated by the source
Operational conditions1 differ
Operating temperature (T-T)Differs	-35 - 65 °C	-10 - 55 °C
Weight & dimensions2 differ
DiameterDiffers	12.3 cm	8.15 cm
HeightKnown for one	Unknown — not stated by the source	51.6 mm
WeightDiffers	300 g	110 g
WidthKnown for one	78.5 mm	Unknown — not stated by the source
DepthKnown for one	115 mm	Unknown — not stated by the source
Batteryidentical
Battery technologyKnown for one	Unknown — not stated by the source	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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