â·ÃÊͺ¶ÒÁÃÒ¤Ò A digital high voltage insulation tester (220V) with wide range measurement up to 5kV and insulation resistance to 60GΩ 380396: High Voltage Digital Insulation Tester (220V) Wide Range Measurement up to 5kV with Insulation Resistance to 60GOhm Features: Test Voltages of 500V, 1000V, 2500V, and 5000V Measure Insulation Resistance to 60GOhm Large 6000 count display with bargraph and backlight Polarization Index measurement (PI) Dielectric Absorption Ratio measurement (DAR) AC/DC Voltage measurement from 0 to 600V with Max/Min, Peak and Relative functions 1 to 15 minute timer function for IR measurements Resistance measurement Indication of output voltage and discharge voltage Auto-discharge function and voltage output warning function Autoranging, Auto Power off and battery check Complete with test leads, 8 x C batteries, 220V AC adaptor, and heavy duty carrying case Specifications: Test Voltage 500V/1000V/2500V/5000V Insulation Resistance 0 to 6MΩ , 0 to 60MΩ , 0 to 600MΩ , 0 to 6GΩ , 0 to 60GΩ Accuracy ±2.5% of reading AC/DC Voltage 0 to 600V Accuracy ±1% of reading Resistance 0 to 600Ω Accuracy ±1.5% of reading Continuity 50Ω Power Eight type C batteries Dimensions 7.8 x 5.8 x 3.4" (198 x 148 x 86mm) Weight 3.2lbs (1438g) 380396 Extech Insulation Tester Megohmeter à¤Ã×èͧÇÑ´¤ÇÒÁà»ç¹©¹Ç¹