my drummond is the cheapo version. a torch bulb in the handle with a neon in case the bulb is duff. i had a TS1000, didn't like it. current clamp readings 20% out and the ohms readings were a joke. sold it on. rely mainly on my fairy light fluke T3.also have a ÂŁ25 chinese VI that has a LCD readout. each to his own, i say.