Proving Units

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  1. Socket & See SP200 Professional Proving Unit

    £69.95

    £83.94

    • Test two pole volt testers including multimeters and test lamps
    • The first proving unit to generate AC waveform for a true test
    • Compact design encourages routine safety checks
    • Automatic test function to conserve batteries
    • Step voltage LED's indicate voltage being generated
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  2. Socket & See SP400 Proving Unit

    £74.95

    £89.94

    Rating:
    93% of 100
    • Intelligent voltage ramp for testing multimeters and voltage indicators
    • Generates from 50-690V with a true AC waveform output
    • Non-contact voltage indicator test feature
    • Powerful enough to light old filament style test lamps
    • Convenient for on site checks and best practice
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  3. Martindale PD690SX Proving Unit with CALCHECK

    £95.00

    £114.00

    • Safely proves the operation of voltage indicators up to 690V
    • Unique CALCHECK function for multifunction tests
    • Individual LED indicators matched to voltage indicator thresholds
    • Long battery life with low battery indicator
    • Includes MAG3 high strength magnetic hanger
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  4. Martindale PD440SX Proving Unit with CALCHECK

    £92.00

    £110.40

    • 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
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  5. Di-Log PU690 690V Voltage Indicator Proving Unit

    £71.95

    £86.34

    • 690V AC Output
    • High/Low Impedance
    • Low Battery Indication
    • CAT II 750V Safety Rated
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