Product comparison · 2 smoke detectors

Dahua Technology DH-YJ104 smoke detector Optical beam detector Wired vs Dahua Technology DHI-HY-SA40A-R8 smoke detector Interconnectable Wired

Key differences

Power source
- DH-YJ104 smoke detector Optical beam detector Wired:DC
- DHI-HY-SA40A-R8 smoke detector Interconnectable Wired:Battery
Operating temperature (T-T)
- DH-YJ104 smoke detector Optical beam detector Wired:-35 - 65 °C
- DHI-HY-SA40A-R8 smoke detector Interconnectable Wired:-10 - 55 °C
Width
- DH-YJ104 smoke detector Optical beam detector Wired:78.5 mm
- DHI-HY-SA40A-R8 smoke detector Interconnectable Wired:81.5 mm
Depth
- DH-YJ104 smoke detector Optical beam detector Wired:115 mm
- DHI-HY-SA40A-R8 smoke detector Interconnectable Wired:51.6 mm
Weight
- DH-YJ104 smoke detector Optical beam detector Wired:300 g
- DHI-HY-SA40A-R8 smoke detector Interconnectable Wired:110 g

Differences highlightedShow differences only

Comparison of DH-YJ104, DHI-HY-SA40A-R8
17 specifications	A Dahua Technology DH-YJ104 smoke detector Optical beam detector Wired Model DH-YJ104 View product	B Dahua Technology DHI-HY-SA40A-R8 smoke detector Interconnectable Wired Model DHI-HY-SA40A-R8 View product
Featuresidentical
Detector typeKnown for one	Optical beam detector	Unknown — not stated by the source
Alarm decibelsKnown for one	1.8 dB	Unknown — not stated by the source
Maximum rangeKnown for one	100 m	Unknown — not stated by the source
InterconnectableKnown for one	Unknown — not stated by the source	Yes
Housing materialKnown for one	Unknown — not stated by the source	ABS
Power1 differ
Power sourceDiffers	DC	Battery
Input voltageKnown for one	24 V	Unknown — not stated by the source
Battery voltageKnown for one	Unknown — not stated by the source	3 V
Operational conditions1 differ
Operating temperature (T-T)Differs	-35 - 65 °C	-10 - 55 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	0 - 95%
Weight & dimensions3 differ
WidthDiffers	78.5 mm	81.5 mm
DepthDiffers	115 mm	51.6 mm
DiameterKnown for one	12.3 cm	Unknown — not stated by the source
WeightDiffers	300 g	110 g
Batteryidentical
Battery technologyKnown for one	Unknown — not stated by the source	Lithium-Ion (Li-Ion)

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.