Electrical Testers

Choose from our offer of electrical testers to ensure the safe installation and maintenance of electrical work. Electrical testers are used to check a wide range of electrical functions in residential and commercial electrical wiring. If you need a quick test for the presence of voltage, how much, as well as what current a wire is carrying, use an electrical tester. You need those answers before an injury occurs. For testing voltage connections in lights or lamps, browse our voltage testers. Our electrical testers and voltage testers are designed for use in every application and in nearly any environment. Testers are accurate, safe and easy to use. When choosing, focus on whether the tester can be used to check voltage levels in both AC and DC circuits, to test for amperage, continuity, polarity, short circuits and open circuits. Believe us, once you have them, you’ll wonder how you have ever existed without them.
We found 63 products
Master Lock Lockout Padlock – 38mm Body & 6mm Hardened Steel Shackle
Master Lock Lockout Padlock – 38mm Body & 6mm Hardened Steel Shackle
from £13.70
Master Lock 406RED Lockout Padlock – 38mm Body & 6mm Composite Nyl...
Master Lock 406RED Lockout Padlock – 38mm Body & 6mm Composite Nyl...
from £15.00
Master Lock Lockout Mini Circuit Breaker Under 11mm
Master Lock Lockout Mini Circuit Breaker Under 11mm
from £6.49
Master Lock S2391 Lockout Mini Circuit Breaker Over 11mm
Master Lock S2391 Lockout Mini Circuit Breaker Over 11mm
from £6.49
Master Lock Two Padlock Lockout Hasp - 4mm Shackle
Master Lock Two Padlock Lockout Hasp - 4mm Shackle
from £5.92
Master Lock S3068MLP Lockout Universal Ball Valve
Master Lock S3068MLP Lockout Universal Ball Valve
from £49.37
Master Lock Lockout Pin-in External Access Circuit Breaker
Master Lock Lockout Pin-in External Access Circuit Breaker
from £6.49
Master Lock S806 Four Padlock Lockout Hasp with Adjustable Cable 1.8m
Master Lock S806 Four Padlock Lockout Hasp with Adjustable Cable 1.8m
from £20.04
Master Lock S31RED Lockout Padlock – 35mm Body & 4.76mm Stainless ...
Master Lock S31RED Lockout Padlock – 35mm Body & 4.76mm Stainless ...
from £13.70
Master Lock Lockout Padlock – Keyed Alike 35mm Body & 4.76mm Stainless Steel Shackle
Master Lock Lockout Padlock – Keyed Alike 35mm Body & 4.76mm Stainless Steel Shackle
from £14.84
Master Lock 1010 SLockout Compact Pouch Only
Master Lock 1010 SLockout Compact Pouch Only
from £15.44
Master Lock S2394 Universal Mini Circuit Breaker Lockout Device
Master Lock S2394 Universal Mini Circuit Breaker Lockout Device
from £11.80
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