s:This is a new product! Color screen! bluetooth! 8 interfaces! Support USB, type-C, DC5525, micro-USB. It can measure the voltage and current changes during the operation/charging process of various DC inverters such as mobiles phones, notebooks, desk lamps, routers, set-top boxes, etc., and can be analyzed by bluetooth on the mobiles phone! --6-Digit High-Precisions Measurement Display -- Uses professional instrument sampling circuit, voltage and current powers measurement accuracy reaches 0.00001 --DC5525 & DC5521 Product Measurement -- Through the UD18 tester, you can test notebooks, car emergency powers supplies, routers and other DC products, real-time monitoring of current, voltage, powers, capacity, powers and other state of charge! --Wireless bluetooth Data Measurement -- Through the bluetooth function of the mobiles phone, the APP bluetooth pairing can be realized, and the charging-status, current, voltage, powers, graph and other measurement data can be viewed in real time. --Multi-screen measurement interface -- By pressing the button, switch different measurement interfaces, test current, voltage, powers, timing, capacity, powers, temperature and other data tests, and can set full powers off, timing charging, over current protection, over voltage protection, low voltage protection and other functions. , fully protect your charging products -- screen 360 rotation -- Four-sided rotary screen 360 can read measurement data at any angle -- can test temperature (not includ temperature probe) -- The UD18 tester can be conne