Owon B41T+ Digital BT Multimeter True RMS Auto-ranging Electrical Tester F639

3-in-1 Multifunctional Meter -- multimeter, meter, offline recorder. Equipped with 2 measuring pens, 2 crocodile clips and a K-type thermocouple, easy to install and use. The multimeter can be widely used in electrical testing, automotive repairing, industrial measuring, etc. Function & Offline Record -- It supports function in smartphone APP and PC software, and is compatible with Android 4.3 and above/ iOS 7.0 and above/ Wins. Offline record function allows you to record for a long time without staff on duty, while reducing consumption to conserve the battery power of the multimeter. And multiple groups of data can be recorded at the same time. Auto Ranging/ Manual Selection -- High accuracy, wide measuring , True RMS, 22000 counts, auto recognition or manual selection of the for more convenient use. It can test AC voltage, DC voltage, AC current, DC current, resistance, diode, frequency, continuity and . And it can capture maximum and minimum values. Measurement -- Comes with a K-type thermocouple, this smart meter features -50~400℃ (-58~752℉) wide measuring for industrial measuring, which has quick response and brings accurate data. Backlight LCD Screen & Buzzer -- Data hold function and clear LCD screen with backlight greatly enhances the reading experience and makes it easy to read. With buzzer for warning in different sistuations, such as before auto power off, in exceeding the measuring , before the function turing off, etc.