Easy-to-use, four-digit counter records up to 9999. Numbers instantly and automatically return to zero with a twist of the reset knob. Hundreds of lab applications provide opportunities to: count blood samples, take surveys, inventory items, total drops of liquid, receive lab samples, and tally biomedical events. For ease in viewing, large white numerals appear on a black background. A protective window seals out dust, dirt, and humidity. The rugged, heavy-duty chrome-finished case has a hinged finger loop for a sure grip.