Hama GS 508 vs Hama GS503 Photoelectrical reflection detector

Comparison of GS 508, GS503

14 specifications	A Hama GS 508View product	B Hama GS503 Photoelectrical reflection detector Model GS503 View product
Featuresidentical
Detector type	Photoelectrical reflection detector	Photoelectrical reflection detector
Product colour	White	White
Alarm decibels	85 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 low indication	Yes	Yes
Battery voltageKnown for one	—Unknown — not stated by the source	9 V
Number of batteries supportedKnown for one	—Unknown — not stated by the source	1
Weight & dimensionsidentical
WidthKnown for one	100 mm	—Unknown — not stated by the source
DepthKnown for one	100 mm	—Unknown — not stated by the source
DiameterKnown for one	10 cm	—Unknown — not stated by the source
HeightKnown for one	30 mm	—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.