Compac has made its world famous Dial Indicators available to the American manufacturer. These gages have all the features which have made Compac so desirable: durability, long life, and accuracy in which every machinist concerned with performance should invest.
Your dial may have the word "Geneve" written below the Compac logo in reference to its origins in Geneva, Switzerland.
You won't be able to throw these in your fish tank and expect them to survive. "Waterproof" is a relative term meaning it conforms to DIN 40050 and IP64 standards. The indicators have o-rings, rubber gaskets and a rubber bellows which will do a reasonable job of keeping liquid sprays from gumming up the works. These are absolutely the best indicators of their kind.
Compac type 355AE waterproof indicator shown above
These waterproof indicators have full metal housings. The movement is shock-proof. The rack (plunger) and 8mm stem are of hardened stainless steel giving these indicators an incredibly long useful life. The bushings won't wear out and the rack teeth won't bend or break like so many domestic and Asian gages. Stamped serial numbers and inspection reports are included. Contact points have M2,5 threads and are fully interchangeable. Indicators come with flat backs. Lug backs and other accessories can be ordered from our parts list. Adapters and other contact points can be found on page 133.
Many Swiss machines are outfitted with Compac waterproof dial indicators. For example, Compac type 354AE is used with Tschudin grinders, Compac type 355E with Norma grinders and Compac type 355AE is often found on Studer machines.