31/2 Digit LCD Display. Resolution 1 m ohm on 2 ohm range. Battery operated.Ratiometric Measurements. Gold plated terminals for low thermal effect. Fully protected against reversal of battery polarity and over loads. 'PUSH TO READ' Switch for additional safety. For Hazardous area like fuse in detonators where current should not exceed 10mA. Avg. Life 25 years. 4 wire measurement to avoid lead resistance.