Housing Dimensions: 202x155x94mm. Interface: USB. Protection: current overload protected. Breakdown voltage: 500V DC @ 0 Ohms...20G Ohms, 1kV DC @ 0 Ohms...40G Ohms, 2.5kV DC @ 0 Ohms...100G Ohms, 5kV DC @ 0 Ohms...1000G Ohms. Compliance with standards: EN61010 600V CAT III. Feed: battery LR14 1.5V x8. DC voltage measurement range: 600V, 1...30V. DC Voltage Measurement Accuracy: ±(2% + 3 digit). VAC voltage measurement range: 600V, 1...30V. Pollution degree: 2. Weight with battery: 2kg. VAC voltage measurement accuracy: ±(2% + 3 digit). Maximum measured voltage: 500V DC @ 0 Ohms...20G Ohms, 1kV DC @ 0 Ohms...40G Ohms, 2.5kV DC @ 0 Ohms...100G Ohms, 5kV DC @ 0 Ohms...1000G Ohms. Insulation resistance measurement range: 500k...1000G Ohms. Insulation resistance measurement accuracy: ±(3% + 5 digit). Battery/rechargeable battery: battery LR14 1.5V x8