Product comparison · 2 smoke detectors

Dahua Technology DH-YJ104 smoke detector Optical beam detector Wired vs Hama GS 558

8specifications compared
7differ
1identical
14known for one product only

Key differences

The Hama GS 558 has 83.2 dB more alarm decibels than the Dahua Technology DH-YJ104 smoke detector Optical beam detector Wired (85 dB vs 1.8 dB). The Dahua Technology DH-YJ104 smoke detector Optical beam detector Wired has 80 m more maximum range than the Hama GS 558 (100 m vs 20 m). The Hama GS 558 has 41.5 mm more width than the Dahua Technology DH-YJ104 smoke detector Optical beam detector Wired (120 mm vs 78.5 mm). Detector type: Optical beam detector on the Dahua Technology DH-YJ104 smoke detector Optical beam detector Wired, Photoelectrical reflection detector on the Hama GS 558. Connectivity technology: Wired on the Dahua Technology DH-YJ104 smoke detector Optical beam detector Wired, Wireless on the Hama GS 558.

Connectivity technology
- DH-YJ104 smoke detector Optical beam detector Wired:Wired
- GS 558:Wireless
Alarm decibels
- DH-YJ104 smoke detector Optical beam detector Wired:1.8 dB
- GS 558:85 dB
Maximum range
- DH-YJ104 smoke detector Optical beam detector Wired:100 m
- GS 558:20 m
Power source
- DH-YJ104 smoke detector Optical beam detector Wired:DC
- GS 558:Battery
Width
- DH-YJ104 smoke detector Optical beam detector Wired:78.5 mm
- GS 558:120 mm
Depth
- DH-YJ104 smoke detector Optical beam detector Wired:115 mm
- GS 558:120 mm

Side by side

Differences highlightedShow differences only

Comparison of DH-YJ104, GS 558
22 specifications	A Dahua Technology DH-YJ104 smoke detector Optical beam detector Wired Model DH-YJ104 View product	B Hama GS 558 View product
Features4 differ
Detector typeDiffers	Optical beam detector	Photoelectrical reflection detector
InterconnectableKnown for one	Unknown — not stated by the source	Yes
Connectivity technologyDiffers	Wired	Wireless
Test buttonKnown for one	Unknown — not stated by the source	Yes
Product colour	White	White
Alarm decibelsDiffers	1.8 dB	85 dB
Alarm muteKnown for one	Unknown — not stated by the source	Yes
Maximum rangeDiffers	100 m	20 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	10
Power1 differ
Power sourceDiffers	DC	Battery
Battery low indicationKnown for one	Unknown — not stated by the source	Yes
Battery typeKnown for one	Unknown — not stated by the source	AA
Number of batteries supportedKnown for one	Unknown — not stated by the source	2
Compatible battery sizesKnown for one	Unknown — not stated by the source	AA
Input voltageKnown for one	24 V	Unknown — not stated by the source
Weight & dimensions2 differ
WidthDiffers	78.5 mm	120 mm
DepthDiffers	115 mm	120 mm
HeightKnown for one	Unknown — not stated by the source	36 mm
DiameterKnown for one	12.3 cm	Unknown — not stated by the source
WeightKnown for one	300 g	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	-35 - 65 °C	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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