[Boatanchors] Conway Masteranger Thermocouple Probe

[D. Robbins]

Greetings, I'm looking for any kind of info on a Conway Masteranger 
Thermocouple Probe. I believe it fits a Conway Masteranger 639 100 
meg meter. The probe takes a small battery, perhaps watch battery 
size, and about half in long, or perhaps 2 batteries at a quarter in 
thick. The end of the probe cord is a small box that  houses the 
battery and has a BNC connector on it to plug into the meter. Any 
info is appreciated, at least if I can find the battery type and 
voltage I could experiment from there.

Dave