Martindale TC69-PD440 VIPD Carry Case and Proving Unit

⚡ portable, battery-powered,

⚡ 245mm x 100mm x 35mm

⚡ Voltage indicators should be proven at the normal working voltage.


£99.95 exc VAT / £119.94 inc VAT

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Soft Carry Case:

The TC69 is a soft carry case for use with ANY MAKE of 2 Pole Voltage and Continuity Testers with a maximum length of 245mm or under, and has a handy pocket for carrying a MARTINDALE proving unit.

The front pocket, for the proving unit, is clear with two holes cut into it so it can be used without having to remove it, and a handy neck strap is also supplied.

This case is compatible with  any of the following Martindale Proving Units:

  • PD430
  • PD440
  • PD690
  • PD700

The TC69 case can also be used with any brand of 2 pole voltage & continuity tester with a maximum length of 245mm or less.

This case will also accept a Drummond Test Lamp less than 245mm in length as well as one of the above Proving Units.

Nominal internal dimensions:

245mm x 100mm x 35mm

Martindale PD440 – 440V Proving Device:

Martindale Electric’s New Proving Devices PD440 and PD430 are portable, battery-powered, and designed for the testing of contact voltage detectors up to 450V to ensure test lamps and voltage testers are operating correctly for safe working.

Suitable for use with Drummond Test Lamps, Digital Multimeter, and Low Impedance Voltage Testers, Martindale’s new Proving Devices offer a greater level of operator safety as they generate voltages up to 450V.

Voltage indicators should be proven at the normal working voltage. The use of higher voltages than seen in the real world can be misleading.

Compact and lightweight, the new proving devices can easily be carried around in an electricians’ tool kit so test instruments can be proved before and after working on any circuit as advocated by the Electrical Safety Council.

Come with a comprehensive two-year guarantee.

The Martindale PD440 is a 440V AC proving device, designed to enable voltage indicators to be fully checked, in compliance with Health & Safety recommendations.

The PD440 is designed to prove the working of voltage detectors used on single and 3 phase supplies.

The PD440’s compatible with ANY MAKE of 2 Pole Voltage and Continuity Testers.

The PD440 can also be used to check Drummond and other filament test lamps as well as standard multimeter and other manufacturers’ two-pole voltage indicators.

Using a voltage indicator without first proving it is working correctly could prove fatal.



Output Voltage
440V nominal

Operating Temperature
-10°C to +40°C at max 70% RH

6 x LR6 / MN1500 1.5V alkaline batteries or equivalent

143 x 84 x 50mm

400g approx including battery

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