Features: 3 5/6 bit resolution, clear LCD screen with backlight, data hold function. Mini size, portable to carry. BT Multimeter + Data Logger + Temperature Meter. Widely used in electrical testing, automotive repairing, industrial temperature measuring, etc. With auto ranging and manual selection, supports measuring AC & DC voltage, AC & DC current, resistance, capacitance, frequency, continuity, diode and duty cycle. Supports NCV non-contact voltage detection; the LED above the display will glow, and the meter will beep when AC voltage is detected. True RMS test supported, 5999 counts, high accuracy, easy operation. BT 4.0 wireless transmission, more stable, less power consumption. Supports BT function in smartphone APP and PC software, compatible with Android 4.3 and above/ iOS 7.0 and above/ Wins. BT recording function can be applied to a variety of scenarios, such as long-time data detection, high-risk test environment, narrow environment detection, multiple groups of data need to be recorded at the same time, etc. Real-time measuring and auto data logging, chart and diagram mode helps to analyze the data tendency. Offline record function allows you to record for a long time without staff on duty, while reducing BT consumption to conserve the battery power of the multimeter. Powered by 2 AA batteries (not included), auto power off in about 30 minutes to save power. Specifications: Material: ABS Power Supply: 2 * 1.5V AA battery (NOT included) Display: 69mm*52mm LCD display with backlight True RMS: Yes Maximum Count: 5999 counts