Generally:
Insulation resistance tester (or high voltage insulation meter) is a special instrument for measuring insulation resistance. It is an ideal tester for measuring the insulation resistance of large transformers, transformers, generators, high-voltage motors, power capacitors, power cables, arresters, etc.
Package Included: (Without Batteries)
1 * packing box
1 * Resistance Megohm meter
1 * Alligator Clip
1 * storage bag
1 * Instruction manual
1 * Test line
1 * Signal shielding wire