We are offering digital pressure gauge. The dg100 series is a media isolated digital pressure gauge featuring multiple measurement units, minmax readings, selectable tarezero and an automatic power off to conserve battery power. Also, a backlight provides improved visibility under marginal lighting conditions. display update rate 2 samples per second power 9 volt alkaline battery automatic power off 1 hour battery life 4000 hours operation (typical) protection rating nema 4, ip 65 instrument case poly carbonate