Involvement:General (knows how to use it) - Ownership:1 day to 1 week Pros:it works perfectly as advertised. When connecting it immediatelly shows the voltage and if you put a cell phone to charge, it will show the amperage that the phone is pulling from the charger Cons:A minor annoyance is that the display is only on one side of the device, so... Read more

Involvement:Expert (understands the inner workings) - Ownership:less than 1 day Pros:The display is very bright. Very easy to use. - Il display è molto luminoso. Facilissimo da usare. Cons:The description is not correct, 3.5V-7.0V 0A-3A. It is a little too big for what I was expecting - La descrizione non è corretta, 3.5V-7.0V 0A-3A. &... Read more

Involvement:General (knows how to use it) - Ownership:more than 1 month Pros:Very nice little tool to test USB ports. Great to know if a port has enough just to charge a device, has stable output, or can power a given USB device (HDD, tuner, etc.) Simple use - just plug in USB port, then plug the device, and read. Cons:Not really a con, but know... Read more

Involvement:General (knows how to use it) - Ownership:1 day to 1 week Pros:It's small, shows the amps and volts. Just plug in to your charging point between your charger and your cable. Instantly shows your current usage and the output volts of the port. Cons:Some charging point are upside down so you cannot see the display. Not the devices faul... Read more

Involvement:General (knows how to use it) - Ownership:1 week to 1 month Pros:There is a product of the same shape as some, but this product is the specification of the measurement range widest. Cons:It is 10V5A in spec, but a product of 7V3A arrived. The direction of the connector, there are times when difficult to use in some cases. OtherThough... Read more

Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month Pros:Item is small, looks cool and has a sturdy blue semi transparent casing. Super easy to use, just plug it in and read the values. Cons:A little bit to fast switching between voltage/amps. A button to manually choose between voltage/amps would have been nice. Ot... Read more

Involvement:Expert (understands the inner workings) - Ownership:1 day to 1 week Pros:Accurate and portable gadget for measure current and voltage on any electronic devices branched to a USB port. Each 5 seconds, the display changes from tension to currents. Acurrate for general purpose and testing of chargers. Cons:Nothing at all. Just the price... Read more

Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month Pros:- Compact. light, looks good, works very well. - Switches between V and A display automatically. - Display is bright, big and easy to read. - Very useful - now I can finally tell how much current my devices draw when charging and what voltage do my chargers/po... Read more

Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month Pros:Seems fairly accurate. Also handy to get an idea of power consumption of whichever USB item including USB harddrives which is always a bit of guesswork. Also handy to see how many amps your phone and especially tablet is pulling. Cons:It's not laboratory grade... Read more

Involvement:General (knows how to use it) - Ownership:1 day to 1 week Pros:This digital meter is great to determine the output voltage and current that is being supplied to your device. Seems accurate and dependable. Cons:Probably would have been neater if the connectors were on the length wise ends instead of the width side. OtherThoughts:I am... Read more