Sight Glass Repair Guide
This guide paired with our repair kit will assist you in repairing your handheld test measure or prover sight glass and components.
Test Measure Care and Use
An easy to follow sheet that allows you to get the most out of your Test Measure for many years to come.
Bullseye Level Retrofit Instructions
An easy to follow sheet that shows you how to remove and update your bullseye levels on your Special J prover.
How To Easily Measure Your Sight Glass
An easy to follow sheet that shows you how to measure your current class on your test measure or prover.