DIGITEN LCD Digital 0-99999 Counter 5 Digit Plus UP Gauge + Proximity Switch Sensor with Magnetic 5 Digits LCD accurate digital counter, Come with proximity switch and magnetic. Power supply: AA 1.5V battery. Easy to install. Measuring range: 0-99999, counting frequency: 20HZ Built in RESET key and PAUSE on panel. Widely use in Automatic Conveyor Belting System,Winding Machine,packaging machinery,textile machinery,milling machine,ect.