The Testboy is stable, the probes are processed solid and each protected by a plastic cap. The cable between the two probes is securely attached and sufficient length to good work with it. The ads are really bright, so you also can read the voltage specified day in direct sunlight. The voltage range starts at 6V, so can be determined by measuring a bell system even.
The voltage tester does exactly what it should, there is nothing to complain about. For the price you wanted, I had honestly did not expect much in terms of processing, but here everything is absolutely perfect. Thus, 5 stars!
