Hand-Cranked Insulation Tester

• Tests insulation of wires, cables, transformers and electrical motors • The test voltage is obtained by means of a hand cranked, constant voltage generator • Does not require batteries or any external power supply, always ready for use • Sensitive ohmmeter for checking resistance of motor windings • Guard terminal eliminates effect of any surface leakage that may influence readings • Light and smooth operating crank • Rugged cross coil movement • High impact housing • Spring loaded terminal connection