supply of supply of high-precision digital insulation resistance tester (megger) with overload protection, suitable for insulation testing up to 5 kv dc , supply of high-precision digital insulation resistance tester (megger) with overload protectio n, suitable for insulation testing up to 5 kv dc, capable of measuring insulation resistance up to 1 to or hig her, and equipped with pi (polarization index) and dar (dielectric absorption ratio) measurement function s. the instrument shall have selectable test voltages (e.g., 250v, 500v, 1000v, 2500v, 5000v), large backli t digital display with bar graph, auto-discharge of capacitive circuits, data hold, auto power-off, and real-ti me clock with internal memory for data logging. the megger shall come complete with 3 high-quality test l eads (3 meters each), crocodile clips, inbuilt rechargeable li-ion battery, battery charger, calibration certifi cate, and a rugged carrying/hanging bag. it shall conform to is/iec 61557-2 and cat iv 600v safety standa rds, and be suitable for field and workshop use in traction substations. make: motwane, fluke, lloyds in sulation india, and testek. [ warranty period: 30 months after the date of delivery ] ]