My order of a oxygen meter has arrived today, but i was supprised that it is a scrap, a gabage. I installed battery, but when you put switch on, no light on. I tried different good battery, same no light on. I need to return it and full refund my money!. really a disappointed!
Brian
e***b (21)- Feedback gegeven door koper.
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Thank you, great device.
t***a (22)- Feedback gegeven door koper.
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Good communication and fast delivery. Hope to deal again and again.