Larry, I bought the Sears 82400. It has a frequency meter and duty cycle as well.

Other features: (partial)

Capacitor tester
Frequency 4 hz to 4mhz
Transistor tester
temperature probe

all for 30 bux.

__________________
Regards

Warren

Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor

Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL

ENTER > = (HP RPN)

Not part of the in-crowd since 1952.