Proving units are essential within the safe isolation process as they provide a known voltage source to verify that a voltage tester is operating correctly, both before, and after checking for voltage. Most proving units provide a constant DC voltage supply up to 700V and even beyond.
£85.00
(ex VAT)
£102.00
(inc VAT)
Typically ships in 2-3 working days
£103.00
(ex VAT)
£123.60
(inc VAT)
In Stock - Available Next Day
£105.00
(ex VAT)
£126.00
(inc VAT)
In Stock - Available Next Day
£115.00
(ex VAT)
£138.00
(inc VAT)
Typically ships in 2-3 working days
£125.00
(ex VAT)
£150.00
(inc VAT)
Typically ships in 2-3 working days
£125.00
(ex VAT)
£150.00
(inc VAT)
Typically ships in 2-3 working days
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