Product comparison · 2 smoke detectors

Dahua Technology DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired vs Hama GS503 Photoelectrical reflection detector

7specifications compared
1differ
6identical
12known for one product only

Key differences

The Hama GS503 Photoelectrical reflection detector has 1 dB more alarm decibels than the Dahua Technology DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired (85 dB vs 84 dB).

Alarm decibels
- DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired:84 dB
- GS503 Photoelectrical reflection detector:85 dB

Side by side

Differences highlightedShow differences only

Comparison of DHI-HY-SA40A, GS503
19 specifications	A Dahua Technology DHI-HY-SA40A smoke detector Photoelectrical reflection detector Wired Model DHI-HY-SA40A View product	B Hama GS503 Photoelectrical reflection detector Model GS503 View product
Features1 differ
Detector type	Photoelectrical reflection detector	Photoelectrical reflection detector
Connectivity technologyKnown for one	Wired	Unknown — not stated by the source
Product colour	White	White
Suitable for indoor useKnown for one	Yes	Unknown — not stated by the source
Light alarmKnown for one	Yes	Unknown — not stated by the source
LED indicatorsKnown for one	Yes	Unknown — not stated by the source
Alarm decibelsDiffers	84 dB	85 dB
Test buttonKnown for one	Unknown — not stated by the source	Yes
Poweridentical
Power source	Battery	Battery
Battery life	10 year(s)	10 year(s)
Battery typeKnown for one	CR123A	Unknown — not stated by the source
Number of batteries supported	1	1
Battery low indicationKnown for one	Unknown — not stated by the source	Yes
Battery voltageKnown for one	Unknown — not stated by the source	9 V
Operational conditionsidentical
Operating temperature (T-T)Known for one	-10 - 55 °C	Unknown — not stated by the source
Weight & dimensionsidentical
DiameterKnown for one	8.15 cm	Unknown — not stated by the source
HeightKnown for one	51.6 mm	Unknown — not stated by the source
WeightKnown for one	110 g	Unknown — not stated by the source
Batteryidentical
Battery technology	Lithium	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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