Features: Basic Functions: NCV non- voltage detection, on-off buzzer, resistance measurement, data retention, automatic shutdown, low battery indicator, etc. Small Size and Easy to Hold: the multimeter is smaller than a smartphone, which is easy for one hand operation and convenient to carry. True RMS Function & 2,000 Counts Display: making measurement and reading more accurate. User-friendly Design: the operation is simple and easy to understand, quick to get started, especially suitable for beginners and daily family use. Auto Multimeter: intelligent recognition of AC and DC voltage, and automatically switch the , no need to change gears manually. Clear Display & Flashlight: 1.6-inch LCD screen with backlit display can be used normally even in a dark environment, and the flashlight can be turned on for auxiliary in particularly dark conditions. Specifications: DC Voltage: 0.8-600V (: 610V) AC Voltage: 0.8~600V (: 610V) Resistance: 600kΩ Counts: 2,000 counts NCV: Yes Display with Gear Display: Yes Data Hold: Yes Backlight: Yes Flashlight: Yes Low Battery Indication:Yes Auto Power-off: Yes Material: ABS Power Supply: 2 * 1.5V AAA battery (NOT included) Item Size: 122 * 61 * 29mm / 4.81 * 2.40 * 1.14in Item Weight: 100g / 3.54oz Package Weight: 187g / 6.62oz Package Size: 14.5 * 9.5 * 4.1cm / 5.71 * 3.74 * 1.61in Package List: 1 * Multimeter 1 * Pair of Test 1 * Manual (English) 【Smart Digital Multimeter】Thanks to its Smart Auto Mode, TESMEN TM-510 4000 counts smart digital multimeter allows you to quickly switch between all measurement tasks, including AC/DC voltage, resistance, and continuity, without selecting a mode or range. It makes measuring work easy, fast, and accurate 【Non-contact】Completely safe Non-Contact Voltage test with a visual and audible alarm; a time-saving and safe feature. You can measure the voltage on the AC wire without having to connect the wire, which makes troubleshooting the line much easier 【Safety Guarantee】CAT II 600V, CE, and RoHS certified. Overload protection measures are used inside the instrument to improve the product's safety performance and maximise users' safety. The outer silicone cover protects the multimeter from damage and potential electric shock