LK-90S is a combination of length meter and length sensor 2it is multifunctional meter widely used in printing ,packing etc LK-90S Length meter & sensor Main parameters1 Length Unit: 0.01m/0.1m/1m2 Rated voltage: DC12-24V AC 110-220V3 Error margin: No more than 1unit of the length4 Wheel size :Φ95.6mm LK-90S electric meter and length meter and Cable length measurement