Mercer indicators are made in Switzerland. These are some of the best inch-reading as well as metric dial indicators available. Many of them are now in stock, and others can be had in about 3 weeks. We present here the most popular models, but please don't hesitate to contact us regarding any indicator with the Mercer name. One caveat: the old-style Mercer indicators were made in England. Those are no longer available, but you can substitute the new models with confidence. They're a dramatic improvement over the old ones. Mercer indicators have 8 mm diameter stems and use 2.5 mm contact point threads. Stem sleeve adapters are available to make them fit 3/8" fixtures. They are identical to Compac indicators, using the same stainless steel racks which give these a long useful life. While Compac has discontinued most of its inch reading models, you can find the equivalent still available with the Mercer name. It's important to note that these come with flat backs. If you need lug backs, you'll have to order them separately. 
Mercer model 213-1 shown above with 58 mm diameter dial.
Order no. 01426021 ... $119.00
The tolerance markers are adjustable and could be removed if they get in the way. The crystal is a flat snap-on style. Use the blade of a large screw driver to pry off the crystal. Now you can remove the tolerance markers and you can press the crystal back into place. This is also the way to replace the crystal if that becomes necessary. Replacement or different style contacts (including ruby and nylon) can be found on page 133. You'll be looking for metric M2.5 threads.
A factory certificate of calibration and declaration of conformity are included. The indicators come in a cardboard storage box. Caution: note that the .0001" models have a relatively high total error (6 graduations over its entire range) which may make this instrument less than ideal. If this is an issue, consider getting the higher accuracy Compac indicator instead (see page 41). Model 216-1 is pretty expensive for a 1" indicator because it has a shock-proof movement. You may not need the full 1" (rarely used) after all. If you select this indicator, you'll be getting a top-of-the-line gage, for sure. If you aren't sure which dial type is correct for your application, please take a look at page 139. | 
