Product comparison · 2 smoke detectors

Dahua Technology DH-YJ104 smoke detector Optical beam detector Wired vs Techly I-ALARM-SMOKE smoke detector Photoelectrical reflection detector Wireless

Key differences

Connectivity technology
- DH-YJ104 smoke detector Optical beam detector Wired:Wired
- I-ALARM-SMOKE smoke detector Photoelectrical reflection detector Wireless:Wireless
Alarm decibels
- DH-YJ104 smoke detector Optical beam detector Wired:1.8 dB
- I-ALARM-SMOKE smoke detector Photoelectrical reflection detector Wireless:85 dB
Maximum range
- DH-YJ104 smoke detector Optical beam detector Wired:100 m
- I-ALARM-SMOKE smoke detector Photoelectrical reflection detector Wireless:3 m
Power source
- DH-YJ104 smoke detector Optical beam detector Wired:DC
- I-ALARM-SMOKE smoke detector Photoelectrical reflection detector Wireless:Battery
Operating temperature (T-T)
- DH-YJ104 smoke detector Optical beam detector Wired:-35 - 65 °C
- I-ALARM-SMOKE smoke detector Photoelectrical reflection detector Wireless:-10 - 55 °C
Width
- DH-YJ104 smoke detector Optical beam detector Wired:78.5 mm
- I-ALARM-SMOKE smoke detector Photoelectrical reflection detector Wireless:128 mm
Depth
- DH-YJ104 smoke detector Optical beam detector Wired:115 mm
- I-ALARM-SMOKE smoke detector Photoelectrical reflection detector Wireless:38 mm

Differences highlightedShow differences only

Comparison of DH-YJ104, I-ALARM-SMOKE
16 specifications	A Dahua Technology DH-YJ104 smoke detector Optical beam detector Wired Model DH-YJ104 View product	B Techly I-ALARM-SMOKE smoke detector Photoelectrical reflection detector Wireless Model I-ALARM-SMOKE View product
Features4 differ
Detector typeDiffers	Optical beam detector	Photoelectrical reflection detector
Connectivity technologyDiffers	Wired	Wireless
Product colour	White	White
Alarm decibelsDiffers	1.8 dB	85 dB
Maximum rangeDiffers	100 m	3 m
Power1 differ
Power sourceDiffers	DC	Battery
Battery voltageKnown for one	Unknown — not stated by the source	9 V
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
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	0 - 80%
Weight & dimensions2 differ
WidthDiffers	78.5 mm	128 mm
DepthDiffers	115 mm	38 mm
DiameterKnown for one	12.3 cm	Unknown — not stated by the source
WeightKnown for one	300 g	Unknown — not stated by the source
Packaging contentidentical
ManualKnown for one	Unknown — not stated by the source	Yes
Packaging dataidentical
Quantity per packKnown for one	Unknown — not stated by the source	1 pc(s)

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.