This is a multifunction instrument that can measure insulation resistance, DC voltage, AC voltage and continuity. It has fashionable appearance and stable performance, suitable for measuring electrical machinery, cable, electromechanical equipment, telecom equipment, electric power facilities and other insulation resistance. Color: As shown in the picture. Material: Plastic. Output Voltage: 250V/ 500V/ 1000V. Test Current: 1mA. Insulation Resistance: 1M~2000M. Short-circuit Current: <1.8mA. Median Resistance: 250V/ 500V: 100M; 1000V: 1000M. Resistance, Continuity Test: 0~2K, <50 buzzer will make a sound, Test Current: 1mA. DC Voltage Measurement: 0~1000V. AC Voltage Measurement: 0~750V. Jack Position: Insulation Resistance: E and L; Voltage, Resistance: V/ and G. Power Supply: 6 * 1.5V AA Battery (Not included) or External DC 9V. Item Size (without Lid): 175 * 115 * 55mm / 6.89 * 4.53 * 2.17in. Item Weight (without Lid): 411g / 14.49oz. Storage Bag Size: 18.5 * 17.5 * 9cm / 7.28 * 6.89 * 3.54in. Package Size: 20.5 * 17.5 * 9.5cm / 8.07 * 6.89 * 3.54in. Package Weight: 900g / 1.98lbs. Package List: 1 * Insulation Resistance Tester, 2 * Test Pen, 2 * Alligator Clip, 1 * Strap, 1 * Storage Bag, 1 * User Manual (English)