XBLITZ SPIRIT ELECTRONIC BREATHALYZER ACCURACY +- 0.08% BAC; DETECTION RANGE 0.00 ~ 2.00‰; WARM-UP TIME 40 SECONDS; CALIBRATION RECOMMENDED ONCE EVERY 6 MONTHS OR EVERY 500 MEASUREMENTS; SHIPPED DIRECTLY TO THE MANUFACTURER - INSTRUCTIONS IN THE PACKAGING; POWER SUPPLY 2x1.5v AA; 5-YEAR WARRANTY