Lifeloc Technologies, Inc. is a trusted international provider of precise, reliable and easy to use portable breath alcohol testing instruments (breathalyzers). We also offer comprehensive online and classroom training, plus a complete line of supplies and drug screening products. Our alcohol testing devices have been manufactured continuously in Colorado since our founding in 1983. All Lifeloc evidential and screening devices for professional use are approved by the U.S. DOT and many other state and international regulatory agencies.