Mechpro Brass Circuit Tester 6-24V If you spend lots of time working on your car or simply tinkering with your vehicles, then look no further as this product may be a handy addition to your garage! This Mechpro Brass Circuit Tester is built tough and is the ideal garage tool for avid project car enthusiast or home DIYers who want to save some dollars servicing their own daily drivers. Are you like us and love to spend the weekends and evenings in the engine bay, fixing or improving your car? Do you look forward to off-road adventures, road trips, modifying your car or just fixing the parts that break instead of paying a professional? Then you, like us, are a DIYer and you need the range of Mechpro tools and garage equipment. When you are dreaming of suspension upgrades, the tools you need are Mechpro. The range of Mechpro is so vast, You can buy individual hand tools, or you can buy entire tool sets. Mechpro gives you strong tools, versatile tools and tools that don't cost the earth so you can focus on the job at hand.