UltraCrit is the first and only hematocrit/hemoglobin device to use ultrasound technology. UltraCrit has shown an accuracy of ?0.4% Hct, resulting in a decrease in both false deferrals and false accepts. Just wick a drop of blood into the single-use cuvette and insert it into the device. The hematocrit is displayed automatically in about 30 seconds. It's that easy. UltraCrit Features Ultrasound technology for high accuracy results Easy to use, hand-held technology Precision: ?0.8% CV at 41 Hct Accuracy: ?0.4% Hct (for readout in 10ths) Linearity: 10.3 - 72.0% Hct 30-second result Less user subjectivity than other methods Large display of result Provides hematocrit value to allow for standardization for all collections, including whole blood, apheresis and double red cell collections. Can be run on wall power or 4-AA batteries UltraCrit Cuvettes Contain no chemicals 15-month shelf life (expiration date always falls on the last day of the month) No tracking of open container stability Opening the container does not effect the expiration date Validation of cuvettes not required Operating temperature: 10 to 40°C (50 to 104°F) Storage temperature: 0 to 30°C (32 to 86°F)