MS5201 is Tekpower OEM'd Mastech MS5201, features all the following.
Checking the insulation of high-voltage electrical equipment (electric motor, transformer, and cable, etc.)
Use 250V to 1000V voltage to test target insulation Measured resistance can be up to 2000M ohms
Short current up to 2.5mA
Data hold and sound/flash alarming
DC/AC voltage measurement
Resistance and continuity test
Please note that battery is not included in the package
1 * MS5201 Digital Insulation Tester
1 * Test leads
1 * Test clips
1 * Screwdriver
1 * User manual
For detail specifications, please download the images showing in the amazon detail page.