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Product comparison · 2 smoke detectors

Dahua Technology DHI-HY-SA40A-R8 smoke detector Interconnectable Wired vs Hama GS 558

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  • 6specifications compared
  • 3differ
  • 3identical
  • 18known for one product only

Key differences

The Hama GS 558 has 38.5 mm more width than the Dahua Technology DHI-HY-SA40A-R8 smoke detector Interconnectable Wired (120 mm vs 81.5 mm). The Hama GS 558 has 68.4 mm more depth than the Dahua Technology DHI-HY-SA40A-R8 smoke detector Interconnectable Wired (120 mm vs 51.6 mm). Connectivity technology: Wired on the Dahua Technology DHI-HY-SA40A-R8 smoke detector Interconnectable Wired, Wireless on the Hama GS 558.

  • Connectivity technology
    • Wired
    • Wireless
  • Width
    • 81.5 mm
    • 120 mm
  • Depth
    • 51.6 mm
    • 120 mm

Side by side

Differences highlightedShow differences only
24 specifications
A

Dahua Technology

DHI-HY-SA40A-R8 smoke detector Interconnectable Wired

Model DHI-HY-SA40A-R8

View product
B

Hama

GS 558View product
Features1 differ
Detector typeKnown for onePhotoelectrical reflection detector
InterconnectableYesYes
Connectivity technologyDiffersWiredWireless
Test buttonKnown for oneYes
Product colourWhiteWhite
Alarm decibelsKnown for one85 dB
Alarm muteKnown for oneYes
Maximum rangeKnown for one20 m
Mounting typeKnown for oneSurface-mounted
Number of simultaneously connected devices (max)Known for one10
Housing materialKnown for oneABS
Poweridentical
Power sourceBatteryBattery
Battery low indicationKnown for oneYes
Battery typeKnown for oneAA
Number of batteries supportedKnown for one2
Compatible battery sizesKnown for oneAA
Battery voltageKnown for one3 V
Weight & dimensions2 differ
WidthDiffers81.5 mm120 mm
DepthDiffers51.6 mm120 mm
HeightKnown for one36 mm
WeightKnown for one110 g
Operational conditionsidentical
Operating temperature (T-T)Known for one-10 - 55 °C
Operating relative humidity (H-H)Known for one0 - 95%
Batteryidentical
Battery technologyKnown for oneLithium-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.

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