Specifications: Material: ABS Rated Test Voltage: 500V Output Voltage: 90~120% of the test rated voltage Output Short Ccuit t: Max. 0.55mA Measurement Range: 0-1000M Transistor Withstand Voltage Measurement: 500V (0.5mA) Discharge Resistance: 10M Automatic Alarm: 50M Operating TemperatureHumidity: 0~40℃, <75% (non-condensing) Storage TemperatureHumidity: -10~50℃, <85% Power Supply: 6 * 1.5V AA battery (NOT included) Item Size: 176 * 110 * 70mm 6.93 * 4.33 * 2.76in Item Weight: 508g 17.93oz Package Weight: 799g 28.20oz Package Size: 21.5 * 16.5 * 8cm 8.46 * 6.50 * 3.15in Package List: 1 * Insulation Resistance Tester 1 * Strap 2 * Test Lead 2 * Alligator Clip 1 * Carrying Zipper Bag We will provide you with good service