This Trickle compatible scale features a constant readout, compact design and wire free battery power supply (two AAA batteries). The precision load cell ensures 1/10th grain accuracy up to 500 grains with a max reference measurement of 1500 grains. This offers the flexibility to either trickle powder into the pan, or weigh charges, bullets or case weights directly. You can trust this scale to make quick work of your most precise handloading tasks.