Hama GS 506 vs Hama GS503 Photoelectrical reflection detector

Comparison of GS 506, GS503

10 specifications	A Hama GS 506View product	B Hama GS503 Photoelectrical reflection detector Model GS503 View product
Featuresidentical
Detector type	Photoelectrical reflection detector	Photoelectrical reflection detector
Test buttonKnown for one	—Unknown — not stated by the source	Yes
Product colour	White	White
Alarm decibels	85 dB	85 dB
Poweridentical
Power source	Battery	Battery
Battery lifeKnown for one	—Unknown — not stated by the source	10 year(s)
Battery low indication	Yes	Yes
Battery voltage	9 V	9 V
Number of batteries supported	1	1
Batteryidentical
Battery technologyKnown for one	—Unknown — not stated by the source	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.