Feature:1. This is a Bluetooth multimeter with high reliability, high precision and easy to carry.2. With Bluetooth function, it can connect with mobile phone and transmit data in real time.3. With LCD backlight display, convenient to read data in the dark.4. More advantages, automatic range, data holding, diode test, continuity test.5. Multi function, it can measure AC and DC voltage, current, resistance and frequency accurately.6. Wide range of uses, it is an ideal tool for laboratories, factories and families.