Feature: 1. ACCURATE AND CONVENIENT: Easy to measure insulation resistance, automatic generation of electrical insulation, more efficient and accurate, intelligent megohm meter makes the measurement more simple and convenient 2. ENERGY SAVING: Turn on the low power mode, if not used within 22 minutes, the megohm meter will automatically shut down, save power and worry free 3. SAFETY TEST: Automatic discharge function, after the completion of the test, the detector automatic discharge professional, safe, accurate test, smart and wordless, safe operation 4. EFFECTIVE PROTECTION: Durable drop protection cover, all round protection, groove fit, silicone material can protect hardware from damage, making measurement safer 5. HIGH DEFINITION LARGE SCREEN DISPLAY: 94.4mm/43.3mm LCD large screen, clear display. Press the BLCTR button to turn on screen light 6. TEST LEAD CONNECTION JACK: Round jack, easy to plug and pull, durable, easy to operate, you can use with confidence Specification: Item Type: Digital Megohm Meter Material: ABS Screen Display: LCD screen LCD Screen Size: Approx. 94.4 x 43.3mm / 3.72 x 1.7in Maximum Count: 1999 Ac Voltage: 1-750V Accuracy: (2% of reading + 5 significant digits) Resolution: 1V Test Voltage: 100+10%, 250V+10%, 500V+0%, 1000V+100 percent Battery: 6 x AA battery(not included). Package List: 1 x Megohm Meter2 x Test Pen2 x Crocodile Clip1 x Pack1 x User Manual