Works with iPad, iPhone and Android smartphone perfectly and shows for a surprisingly low price (identical devices from other manufacturers cost much more) to exact values. Thus, not only the performance of various charging adapter can be measured, but also their compatibility. The ads are very rich in contrast and clearly visible in the dark.
Negatives:
Incompatible with div. External hard drives. Damaged the first partition my external hard drive, which was subsequently no longer accessible. Through a hard disk manager, this problem could be resolved quite easily by assigning a drive letter, but more damage can not be ruled out,
