Proving Units
Proving Units
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Proving Units

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Proving Units
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Choose The Right Proving Unit

For voltage indicators that have a maximum 400V test range, you need the Martindale PD430 or PD440. If your voltage indicator has a maximum 690V test range, you will need the Martindale PD690 or PD700.

Always use a proving unit that will check the full range of your voltage indicator to ensure it is working correctly.

If you have a DC specific application, the Martindale PD710 will prove up to 700V DC.

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Displaying 1 to 9 (of 9 products) Page: 1 
 Martindale PD430 
21% Off
Martindale PD430
430V AC Proving Unit with 50V & 430V Outputs, 12V Vehicle Input & Low Battery Warning
99.00
79.00 
View Product Details
 Martindale PD440 
26% Off
Martindale PD440
430V AC Proving Unit with 12V Vehicle Input & Low Battery Warning
87.00
64.99 
View Product Details
 Martindale PD690 
33% Off
Martindale PD690
700V AC Proving Unit with Vehicle Input & Low Battery Warning
95.00
64.00 
View Product Details
 Martindale PD700 
30% Off
Martindale PD700
700V AC Proving Unit with 50V & 700V Outputs, 12V Vehicle Input & Low Battery Warning
105.00
74.00 
View Product Details
 Martindale PD710 
Martindale PD710
700V DC Proving Unit with 12V Vehicle Input & Low Battery Warning
109.00View Product Details
 Martindale PD240 
23% Off
Martindale PD240
240V DC Proving Unit
62.00
48.00 
View Product Details
 Blackstar P240 
Blackstar P240
240V DC Proving Unit
54.00View Product Details
 Seaward PP1 
Seaward PP1
240V Proving Unit
121.00View Product Details
 Seaward PPX 
Seaward PPX
240V Proving Unit
125.00View Product Details
Displaying 1 to 9 (of 9 products) Page: 1 
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