My favourite diy shop in Oxford. Very helpful staff. Huge range of tools and materials. 5 stars!
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The Blue Spot Tools All Purpose Voltage Tester is specially designed for fuse testing, continuity and socket testing, verifying DC polarity, testing AC voltage, detecting microwave leakage, detecting AC power and locating breakpoints in the wiring. Features a pocket clip for convenient carrying. Includes batteries. TUV / GS-approved.