Proving Devices

Showing all 7 results

  • Martindale PD430 50V/440V AC Proving Unit

    • Safely and simply proves the operation of voltage indicators and test lamps
    • Essential for implementing effective safe isolation procedures
    • 50V/440V industry leading proving unit for all low & high impedance testers
    • Long battery life time with low battery indicator
    • Optional in-car & mains power supplies available
  • Martindale PD440 440V AC Proving Unit

    • Safely and simply proves the operation of voltage indicators and test lamps
    • Essential for implementing effective safe isolation procedures
    • 440V industry leading proving unit for all low and high impedance testers
    • Long battery life time with low battery indicator
    • Optional in-car & mains power supplies available
  • Martindale PD690 700V AC Proving Unit

    • Safely and simply proves the operation of voltage indicators and test lamps
    • Essential for implementing effective safe isolation procedures
    • 700V industry leading proving unit for all low and high impedance testers
    • Long battery life time with low battery indicator
    • Optional in-car & mains power supplies available
  • Martindale PD700 50V/700V AC Proving Unit

    • Safely and simply proves the operation of voltage indicators and test lamps
    • Essential for implementing effective safe isolation procedures
    • 50V/700V industry leading proving unit for all low and high impedance testers
    • Long battery life time with low battery indicator
    • Optional in-car & mains power supplies available
  • Martindale PD710 700V DC Proving Unit

    • Safely and simply proves the operation of voltage indicators and test lamps
    • 700V DC output proving unit for both low and high impedance testers
    • Essential for implementing effective safe isolation procedures
    • Long battery life time with low battery indicator
    • Optional in-car & mains power supplies available
  • Martindale PD240 240V DC Proving Unit

    • Safely and simply proves the operation of multimeters and voltage testers
    • 240V DC output proving unit
    • Compact size with belt clip
    • Essential for implementing effective safe isolation
  • Martindale PSUPD230 Proving Unit Power supply

    • Mains power supply
    • Compatible with Martindale PD430, PD440, PD690, PD700 & PD710