Features: Digital display, with a max reading of 1999, concise and accurate readings. It has all the needed functions, DC voltage, AC voltage, DC Amps, Ohms, diode and continuity. Manual Range switch and function switch. Powered by 2pcs 1.5V button cell. Low temperature resistant, anti-folding meter pen. Small and lightweight, easy to carry around. Specifications: Battery: Powered by 2 * 1.5V button cell, each battery 110mAh Operation Temperature: 0-40, Relative Humidity: 75% Storage Temperature: -10-50, Relative Humidity: 85% Item Size: 11.3 * 5.4 * 2.2cm / 4.4 * 2.1 * 0.9in Item Weight: 98g / 3.5oz Package Size: 13.6 * 7.0 * 5.3cm / 5.4 * 2.8 * 2.1in Package Weight: 147g / 5.2oz Notes: Please don't use this device under 0. If the device do not turn on, please open the back cover and check the battery. Packing List: 1 * Digital Multimeter 1 * User Manual(Chinese/English)