Multi-function measurement can measure a variety of electronic components, to meet your needs for multi-function, suitable for on-site services maintenance, personal DIY enthusiasts, home maintenance, etc. AC/DC voltage, Resistance/diode/continuity test; Non-contact sensor; Neutral and Live wire detection; True RMS; Flashlight lighting Mobile phone maintenance testing. Suitable for mobile phone maintenance testing, resistance measurement, diode, on-off test, etc. Backlit Large Screen Flashlight Lighting: The screen defaults to turn off the backlight. Long press the backlight button to tum on the backlight, and the data is clear at a glance; LED flashlight lighting, the light is bright, and there is an extra security guarantee for power measurement in dark places Small And Convenient, Easy To Carry: Breaking the design scheme of the conventional multimeter, pen-style design, smart, convenient, and more convenient; suitable for on-site services maintenance, personal DIY enthusiasts, home maintenance, etc. Note: Powered by 1.5V AAA battery (not included).