Range is 0 - 150 PSI. Designed to measure the load pressure on the air bags in PSI. Connects to the air line from your air bags. One high accuracy PSI sensor built in. Display updates every second. Red or Blue LED display. Mounts in a standard 2-1/16" hole. Limited lifetime manufacturer's warranty. Made in the USA.

NOTE: This gauge fits Peterbilt and Kenworth models; 2005 and older. Also fits Freightliner, International, Mack, Western Star, and Volvo models with 2-1/16" gauges on the dash.