Martindale PD240 Proving Unit

  • Pocket-sized 240V DC proving unit
  • Current limited to maximum 2mA
  • Long battery life with switch-mode tech
  • LED indicator shows powered status
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£64.95 (ex VAT)

£77.94 (inc VAT)

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Usually ships In 3 to 5 working days
  • Pocket-sized 240V DC proving unit
  • Current limited to maximum 2mA
  • Long battery life with switch-mode tech
  • LED indicator shows powered status
Free Shipping

Spend over £100 on any new goods order and receive automatic free shipping

Rewards

Points make purchases! For every £1 spent, earn back 1p that can be spent on any future new goods purchase

Our Price Promise

We offer a Price Match Promise! Find an equivalent tester for a cheaper price on a competitor site, and we’ll do our best to match it

Express Delivery & Calibration

Express Delivery is currently unavailable for customers wishing to add calibration to their New Goods order. For more information, visit our Delivery Information page. 

£64.95 (ex VAT)

£77.94 (inc VAT)

Earn 64 points

Usually ships In 3 to 5 working days
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Martindale PD240 Proving Unit

The Martindale PD240 Proving Unit is a compact and reliable tool designed to ensure electrical safety in the workplace. It produces a stable 240V DC output, making it ideal for verifying voltage indicators before and after use. Its pocket-sized build and lightweight design allow technicians to carry it with ease, making it a practical choice for everyday testing.

Reliable Safety Testing

The unit prioritises operator safety by restricting the current to a maximum of 2mA. It works effectively with digital multimeters and two-pole voltage testers that have an input impedance greater than 120kΩ. A microswitch activates the device as soon as test probes enter the front face apertures, and an adjacent LED indicator clearly displays when the proving unit is powered.

Practical and Long-Lasting

Thanks to its switch-mode electronics, the Martindale PD240 offers long battery life, reducing downtime and replacement needs. A flush-mounted pocket clip provides the option of stable bench use when required, while the durable flame-retardant ABS casing ensures long service life under regular use. Its design balances safety, durability, and ease of use, making it a dependable addition to any electrician’s toolkit.

This unit is a vital accessory for anyone who needs to confirm the correct function of voltage indicators. By integrating clear operation, compact design, and safe current limitation, the Martindale PD240 Proving Unit helps maintain compliance with safe working practices.

Key Features
  • Produces a 240V DC proving output
  • Pocket-sized design for easy handling
  • Current limited to a safe 2mA maximum
  • LED indicator shows power status
  • Microswitch activation when probes inserted
  • Long battery life with switch-mode electronics
  • Flush-mounted pocket clip for bench use
  • Flame retardant ABS body for durability
  • Lightweight at only 185g for portability
  • Suitable for multimeters and two-pole testers over 120kΩ
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Martindale PD240 Proving Unit

The Martindale PD240 Proving Unit is a compact and reliable tool designed to ensure electrical safety in the workplace. It produces a stable 240V DC output, making it ideal for verifying voltage indicators before and after use. Its pocket-sized build and lightweight design allow technicians to carry it with ease, making it a practical choice for everyday testing.

Reliable Safety Testing

This proving unit is designed with operator safety in mind. The current is restricted to a maximum of 2mA, which makes the Martindale PD240 suitable for use with digital multimeters and two-pole voltage testers that have an input impedance greater than 120kΩ. The device activates via a microswitch once test probes are inserted into the front face apertures, and an LED indicator clearly shows when the proving unit is powered.

Practical and Long-Lasting

Thanks to its switch-mode electronics, the Martindale PD240 offers long battery life, reducing downtime and replacement needs. A flush-mounted pocket clip provides the option of stable bench use when required, while the durable flame-retardant ABS casing ensures long service life under regular use. Its design balances safety, durability, and ease of use, making it a dependable addition to any electrician’s toolkit.

This unit is a vital accessory for anyone who needs to confirm the correct function of voltage indicators. By integrating clear operation, compact design, and safe current limitation, the Martindale PD240 Proving Unit helps maintain compliance with safe working practices.

Key Features
  • Produces a 240V DC proving output
  • Pocket-sized design for easy handling
  • Current limited to a safe 2mA maximum
  • LED indicator shows power status
  • Microswitch activation when probes inserted
  • Long battery life with switch-mode electronics
  • Flush-mounted pocket clip for bench use
  • Flame retardant ABS body for durability
  • Lightweight at only 185g for portability
  • Suitable for multimeters and two-pole testers over 120kΩ

 

Technical Specifications
SpecificationDetails
Product nameMartindale PD240 Proving Unit
ManufacturerMartindale
Output voltage240V DC
Output current2mA max across 120kΩ, 3.5mA max, short circuit protected
Activation methodMicroswitch triggered by probe insertion
IndicatorsLED adjacent to probe apertures shows when powered
Battery type6LR61 / MN1604 / PP3 9V (alkaline, included)
Battery shut-offDevice shuts off below 5V
Battery lifeLong-lasting, switch-mode electronics
Body materialFlame retardant ABS
Dimensions145 × 63 × 31 mm
Weight180–185g including battery
ClipFlush-mounted pocket clip for bench use
Operating modeDC output only
Safety suitabilityFor multimeters and two-pole voltage testers with input >120kΩ
Warranty2 years
Part codePD240
What’s Included
  • Martindale PD240 Proving Unit
  • 9V PP3 (MN1604/6LR61) battery (installed)
  • User manual

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