ZWS420 High Voltage Insulation Tester or named Megohmmeter、Digital Megohmmeter Insulation Resistance Tester、High Voltage Insulation Resistance Tester etc. Specialize in laboratory or various of construction area.
The instrument has the functions of LCD large screen gray-white backlight display, data storage, data reference and so on. At the same time, it can automatically calculate the absorption ratio(DAR) and polarization index(PI), and automatically store the data of 15 seconds, 30 seconds, 1 minute and 10 minutes.
High resolution, easy to operate, easy to carry, accurate, reliable, stable performance, strong anti-interference ability. Moreover, it has the structure of shockproof, dust-proof and moisture-proof. It is suitable for measuring the resistance of various insulating materials and the insulation resistance of transformers, motors, cables and electrical equipment.