Features Multifunctional tool - This insulation resistance tester can measure insulation resistance, AC voltage, etc. Easy to use - Supports automatic measurement, battery level indicator, LCD backlight, alarm light display, alarm buzzer. Wide application: this multimeter is widely used for insulation resistance measurement for insulation materials and various types of electrical devices such as transformers, electrical machines, cables, switches and electrical appliances. Good work performance - High accuracy, stable performance, easy operation and reliability. Practical tool - It is an ideal tool for maintenance, testing and inspection of electrical devices. Features: High accuracy, stable performance, easy operation and reliability. It is an ideal tool for maintenance, testing and inspection of electrical equipment. This insulation resistance tester can measure insulation resistance, AC voltage, etc. Supports automatic measurement, low battery indicator, LCD backlight, alarm light display, alarm buzzer. Widely used for insulation resistance measurement for insulation materials and various types of electrical equipment such as transformers, electrical machines, cables, switches and electrical appliances. Specification: Display: LCD, 1999 count. Overload indicator: ">5.5 GΩ" for insulation resistance measurement; "OL V" for voltage measurement. Accuracy: ± (a% measured value + digits); calibration per year. Working temperature: 0-35°C. Working humidity: ≤75%. Working height: 2000 m. Storage temperature: -20~60℃. Storage humidity: ≤ 80%. Battery: 6pcs x 1.5V battery (not included) Size (approx. ): 150 x 100 x 71 mm/5.9 x 3.9 x 2.8 inches. Weight (approx. ): 837 g / 29.5 oz. Package list: 1 x insulation resistance tester. 2 x test leads. 2 x alligator clips. 1 x black bag. 1 Gallus Package List