Review on All-Sun Electric Circuit Tester: Advanced Automotive Electrical System Diagnostic Tool with Probe Hook by Michael Heidelberg

I would give all 5 stars, except for one BIG flaw, NO SOUND! This may not seem like such a big deal at first glance until you're lying on your back under a vehicle or working upside down under the dash and need to be looking at that gauge and not what you're working on. I mentioned that he will take one of your "working" hands to hold him where you can see him. All it takes is a beep or buzzer to let you know when you have electricity. The lack of a feature makes this tool completely useless and I will probably never use it. Spend the extra money and get the real deal, not that. You'll be instantly glad you did.