[time-nuts] Panel Mount Frequency Counter

[Richard W. Solomon]

I am looking for a Frequency Counter I can Panel Mount. I am 
cobbling up a Rb in a Box for portable use and the counter will 
tell me if I have a signal. 

Any ideas where I can find something like that ? Frequency range 
not important (only need up to 30 MHz or so).

Thanks, Dick, W1KSZ