Martindale Electric Keeping You Safe
  • Products
    • Safe isolation & Voltage Indication
      • Proving Devices
      • Voltage Indication
      • Non-Contact Detectors
    • Locking Off Kits
    • 18th Edition
    • Drummond Test Lamps
    • Socket Testers
      • Basic, Advanced & Pro Socket Testers
      • Industrial & 3-phase Socket Testers
    • Clamp Meters & Multimeters
      • Multimeters
      • Clamp Meters
    • Test Leads & Accessories
      • Test Leads
      • Carry Cases
    • PAT Testing
      • PAT Testers
      • PAT Test Accessories
      • PAT Software & Certificate Pads
    • Environmental
      • Temperature
      • Light
      • Sound
      • Gas, airflow & pressure
      • Humidity
    • Electrical Test Tools
      • Specialist Metrohm Testers
      • Fuse Finders & Cable Detectors
      • Phase Rotation & Continuity
      • Calibrators & Decade Boxes
    • Download the full catalogue (pdf)
  • Support
    • Manuals
    • Service Centre
    • Calibration Service
    • Downloads
    • News
    • Training
  • Know-how
×
Select Page
Home / Safe isolation & Voltage Indication / Proving Devices

Proving Devices

Showing all 11 results

  • Martindale PD440S 440V AC Proving Unit

    • Safely and simply proves the operation of voltage indicators and test lamps up to 440V
    • Essential for implementing effective safe isolation procedures
    • Tough overmoulded low profile design
    • Long battery life with low battery indicator
    • Includes MAG3 high strength magnetic hanger
    • Colour coded for voltage output
  • Martindale PD440SX 50V/120V/230V/440V AC Proving Unit with CALCHECK

    • Safely proves the operation of voltage indicators and test lamps up to 440V
    • Unique CALCHECK function for multifunction installation tests
    • Individual LED indicators matched to voltage indicator thresholds
    • Long battery life with low battery indicator
    • Includes MAG3 high strength magnetic hanger
    • Colour coded for voltage output
  • Martindale PD690S 690V AC Proving Unit

    • Safely and simply proves the operation of voltage indicators and test lamps up to 690V
    • Essential for implementing effective safe isolation procedures
    • Tough overmoulded low profile design
    • Long battery life with low battery indicator
    • Includes MAG3 high strength magnetic hanger
    • Colour coded for voltage output
  • Martindale PD690SX 50V/120V/230V/400V/690V AC Proving Unit with CALCHECK

    • Safely proves the operation of voltage indicators and test lamps up to 690V
    • Unique CALCHECK function for multifunction installation tests
    • Individual LED indicators matched to voltage indicator thresholds
    • Long battery life with low battery indicator
    • Includes MAG3 high strength magnetic hanger
    • Colour coded for voltage output
  • 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 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 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

+44 (0) 1923 44 17 17
[email protected]

Metrohm House, 12 Imperial Park, Imperial Way
Watford, Hertfordshire
WD24 4PP
United Kingdom

  • Log In
  • Register your product
  • Safety Notices
  • Frequently Asked Questions
  • Privacy Policy
  • Shipping
  • About Us
  • Contact Us

Get the latest news:



Keeping You Safe

  • Facebook
  • Twitter
  • LinkedIn
  • Youtube
@ Copyright 2021 Martindale Electric Co. Ltd. | All rights reserved | Company Registration No: 3387451 | Terms & Conditions | Privacy Notice | Warranty

You can order our products online from Amazon, RS Components, most specialist online shops or ask your local test equipment supplier.

We use cookies to give you the best possible experience on our site. By continuing to use the site you agree to our use of cookies.OkFind out more