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  1. Martindale Electric Proving Unit, With Calcheck, 50V/120V/230V/440V Ac - MPN: PD440SX - Zoro

  2. Martindale Electric Vipdlok150-S Led Indicator & Proving Unit Kit 3.5Ma Cat Iv 1 - MPN: VIPDLOK150-S - Zoro

  3. Martindale Proving Unit PD440 Only very good condition- Calibrated To Jan 2026

    In good working order Comes with the carry case only nothing else

    eBay

  4. Martindale VIPD150-S Voltage Indicator Proving Unit 3.5mA 690V LED

  5. Martindale VT25PD-S Voltage Indicator Proving Unit 3.5mA 690V LED

  6. Martindale Electric Proving Unit, With Calcheck, 50V/120V/230V/400V/690V Ac - MPN: PD690SX - Zoro

  7. Martindale PD440S 430V AC Proving Unit Kit

    It ensures safe electrical work by providing a reliable voltage output to prove the functionality of voltage indicators before and after use, as required by the Electricity at Work Regulations. It is designed to match the output requirements of various voltage indicators, including the VI13800, MTL10, and MTL20 Drummond test lamps. Key features include a tough over-moulded, low-profile case, long battery life with a low battery indicator, and a magnetic hanger (MAG3) for convenient use.

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  8. 50-440V Proving Unit - PD440SX Very Good Condition

    This MARTINDALE ELECTRIC Proving Unit is a reliable piece of test equipment that is ideal for measuring voltage ranges between 50-440V. The PD440SX model is designed to provide accurate readings and is suitable for use in various industries. Whether you're a professional in the business, office or industrial sector, or a hobbyist looking for a reliable voltage meter, this Proving Unit is an excellent choice.

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  9. Martindale VIPDLOKPRO138-S Proving Unit Kit 3.5mA 440V LED

  10. (Wi1) Martindale PD440S 440V AC Proving Unit & Extras

    This Martindale PD440S 440V AC Proving Unit & Extras is a top-notch product that will meet all your testing needs. With its high-quality construction and advanced features, you can rely on this proving unit to provide accurate and reliable results every time. The unit is designed to test a wide range of applications, making it perfect for use in various industries. Its brand, Martindale, is known for producing top-quality testing equipment, and this proving unit is no exception. Whether you're looking to test for safety, quality, or performance, this unit is the perfect choice.

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  11. Martindale Electric Vipdlokpro150-S Led Indicator & Proving Unit 3.5Ma Cat Iv 10 - MPN: VIPDLOKPRO150-S - Zoro

  12. Martindale PD440 430v AC Proving Unit/Drummond MTL10 Test Lamp (4)

    The Martindale PD440 430v AC Proving Unit is a reliable testing device designed to verify the functionality of electrical systems. This unit is specifically designed by the reputable brand Martindale, ensuring accuracy and efficiency in testing procedures. Perfect for professionals in the electrical industry, this proving unit helps to streamline the testing process and ensure that electrical systems are operating safely and effectively.

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  13. Martindale VT28PD-S Voltage Indicator Proving Unit 3.5mA 690V LCD, LED

  14. Martindale proving unit PD440 Voltage Indicator VI-13800 Lock Off Kit & V17 Vol

    Martindale

    eBay

  15. Martindale VIPD138-S Voltage Indicator Proving Unit 3.5mA 440V LED

  16. Martindale proving unit PD440Plus Martindale VL-13800 testers + Kewtech KT1780

    Martindale proving unit PD440Plus Martindale VL-13800 testers + Kewtech KT1780 (480)

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  17. Martindale Voltage Indicator VI-13700/2 + Proving Unit PD440

    Used

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