Quantity(pcs):200Digital Display USB Tester Current Voltage Charger Capacity Doctor power bank Batte meter Detector+discharge resistance Load1.3v-7v USB tester 1pcs2.USB LOAD WITH SWITH 1PCSFeatures:1.Also shows voltage and current and mAH data for easy viewing.2.Mobile power output MAH can be detected.3.Does not affect the data transmission.4.With precision current calibration function, the current accuracy is higher(it has been calibrated when shipped)5.Smaller loss .Specifications:Input Voltage: 3V - 7VThe voltage resolution: 0.01 VInput current: 0.05A-3.50AThe current resolution: 0.01 ACapacity range: 0-19999 mAHAccuracy: plus or minus 1%Current of battery, value of discharging capacitor.(Total ten parameters)Clean the data: Push the button until the parameters changed to next sets of parameters. Then release the button. Then the next sets of parameters will be started and they will start from zero.Check the parameters: Quick beat the button double times(within 0.5s), then it is checking model. The LED background will be flash.Then you can see the next set of parameters in LCD screen. Quick beat the button double times agian, you release the parameters checking model. LED backgroud be light with flash.Over voltage or under voltage: An arrowhead will be shown in LCD screen and LED background will flash. Push the button and LED will be light without flash. It will last 30s.Package Included:1 x USB Current Voltage Meter (both is no retail boxes)1 x 3A Discharge withc swithLoad ResistorAfter place order:pls contact seller if you have any questions ,you can get best service from me here ;if not,will decide as seller's considerationQuality Guarantee:One year Guarantee(not including components).Items can be returned for repair within 1 year from the date you receive your merchandise.Buyer is responsible for return shipping with proper packaging.Buyer is responsible for return shipping cost and insurance.Please contact us via email before return.if meet pacakge destroyed,(once you recieve the goods. if find the goods broken ,please contact with express company, First Time. and get ''the goods broken proof ducuments'' and '' issue number',then can get compensation from express company ,meanwhile,you send back the broken item back by post, i will change new or repair it,i will pay for the return shipping fee )any problem,please send back by post,don't estimate the value as compensationFeedback:Once you have received your item, please leave feedback for us.Negative feedback does not resolve any underlying issues. If you have a problem, Please Contact us via email first and give us the opportunity to reasonably rectify in a reasonable amount of time. We will try to respond ASAP, and we are always willing to work things out.Contact us:For some uncontrollable factors, the item may be damaged during shipping. If you receive a broken item, Please Contact us first, we will investigate and replace, if you have any other questions please email us.We will respond within 1 business day or less. Please include item number or order number in all communications.
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