satcom said:What a sales pitch, just make the consumer feel he had something old and you have the new improved product, of course their new electronic version can never fail, we all know how reliable electriconic device are under a surge.
Three points:
1) I agree totally with the above quote. Remember the KISS rule. How many more components have a chance of failing in a totally electronic meter?
2) Wiggy-type meters are the only thing I trust when checking out 120VAC I/O on PLC systems. They won't lie too you like a typical DVM. I know, I know, some DVM's have an adapter to eliminate ghost voltages, but that's just a 2-3000 ohm resistor. How is that different than the "load" that a solenoid tester puts on the circuit.
3) Finally, an electrician can't get by with just a Wiggy. They also need a high quality DVM, and I don't mean a Fluke T3. They can only check resistance up to about 1000 ohms.
Personally, I carry a Knopp "wiggy" and a Fluke-87.