01N DEF SERIES OVERVIEWThe GPI Digital diesel exhaust fluid meters are suitable for inline or end-of-hose installation for use with DEF, water, or similar fluids. These electronic flowmeters are virtually maintenance-free and provide continuous measurement, flow range of 3 to 30 GPM (10-100 L/min).BENEFITS INCLUDE:Auto-off display turns off after 1 minute of inactivity to extend battery life.4-digit electronic display reads batch and cumulative totals