On this page the old testdevice 2 was compared with Scurion P4, Scurion P7 and Petzl Ultra. The old testdevice 2 contained four separate LED lights. Since it was the first one which was caveproof, Austrian cavers call it 'Tobi 1')
comparison 2 2009
comparison 3 2010
comparison 4 2010
First close or hide any sidebar to achieve maximum horizontal window size,
than chose two lights or settings to compare.