Features:High Voltage Indication: ¡Ì3 1/2 digital display、 with a max. reading of 1999An accurate、 reliable and easy-to-use insulation testerLarge LCD display、 easy to readLCD Backlight: ¡ÌLow Battery Indication: ¡ÌBasic Function:Test Voltage: 250V/500V/1000VResistance Range: 0.1M¦¸¡ª1999M¦¸Min Resolution: 1 M¦¸Accuracy: ¡À10%Short-Circuit Current: >1.0mAAC Voltage: 1-750VOutput Load: ¡Ý1000M¦¸(90%~110%)Insulation Resistance: ¡Ý500 M¦¸Withstand Voltage: AC 2KV 50Hz 1min Specifications:Insulation Resistance(¦¸): Test Voltage:250V/500V/1000VOutput Current: 250V(R=250k¦¸) 1mA; 500V(R=500k¦¸) 1mA; 1000V(R=1M¦¸) 1mA200M¦¸ 250V: 0.1-20M¦¸; 500V:0.1-50M¦¸; 1000V: 0.1-100M¦¸ ¡À4%2000M¦¸ 250V: 20-500M¦¸; 500V:50-1000M¦¸; 1000V: 100-2000M¦¸ ¡À4%Short Circuit Current: ¡Ü1.8mAAC Voltage: 750V ¡À1%+6General Characteristic:Power: 6 * 1.5V AA Batteries (not included)LCD Size: 55 * 35mm Product Net Weight: 500g Product Size: 175 * 115 * 55mm Product Color: GreyPackage Size: 18.5 * 16 * 7cm / 7.4 * 6.3 * 2.1inPackage Weight: 653g / 1.4lbPackage List:1 * HD HDT20A Insulation Rseistance Tester1 * Pair Test Lead1 * Pair Alligator Clip1 * English Manual