YDuupxe ET8909 - Pen Type Mini Portable

Specification: Item Type: Pen Type Multimeter Product Model: ET8909 Maximum Display: (3 5/6) digits automatic polarity display Measurement Method: Double integral A D conversion Sampling Rate: About 3 times per second Over Range Display: The highest digit displays "OL" Working Environment: (0-40)℃, relative humidity Power Supply Mode: 1 x AAA battery (not include) Package List: 1 x Host 1 x Wiring 1 x User Manual How to Use: Turn on the switch to use.