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Proving Units
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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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Socket & See SP400 Proving Unit£74.95
£89.94
- 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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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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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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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
