Proving Units

Choose The Right Proving Unit

For voltage indicators that have a maximum 400V test range, you need the Martindale PD430 or PD440. If your voltage indicator has a maximum 690V test range, you will need the Martindale PD690 or PD700.

Always use a proving unit that will check the full range of your voltage indicator to ensure it is working correctly.

If you have a DC specific application, the Martindale PD710 will prove up to 700V DC.

Set Descending Direction

10 Items

per page
  1. Martindale PD430 - Proving Unit (50V AC / 440V AC)
    Special Price £94.80 £79.00 Regular Price £134.40
    In Stock

  2. Martindale PD440 - Proving Unit (440V AC)
    Special Price £97.20 £81.00 Regular Price £109.20
    In Stock

  3. Martindale PD690 - Proving Unit (700V AC)
    Special Price £105.60 £88.00 Regular Price £118.80
    In Stock

  4. Martindale PD700 - Proving Unit (50V AC / 700V AC)
    Special Price £105.60 £88.00 Regular Price £141.60
    In Stock

  5. Martindale PD710 - Proving Unit (700V DC)
    £146.40 £122.00
    In Stock

  6. Martindale PD240 - Proving Unit (240V DC)
    Special Price £69.60 £58.00 Regular Price £82.80
    In Stock

  7. Megger MPU690 - Proving Unit (690V AC)
    £134.40 £112.00
    In stock

  8. Fluke PRV240 - Proving Unit (240V AC/DC)
    £142.80 £119.00
    In stock

  9. Martindale TC70 VTPD - Soft Carry Case
    £31.20 £26.00
    In stock

Set Descending Direction

10 Items

per page