Lifeloc Technologies makes portable breath alcohol testing equipment used by law enforcement, employers, correctional facilities, and safety-sensitive industries like mining and oil & gas. Lifeloc's two core product lines are the FC Series — handheld breathalyzers for law enforcement and corrections — and the Workplace Series, designed for employer-administered alcohol testing programs in federally regulated transportation industries. Both lines are DOT-approved as evidential breath testers, meaning results are admissible in legal proceedings. Beyond instruments, Lifeloc sells consumables (mouthpieces, calibration gas, forms) and services (recalibration, service agreements) that generate recurring revenue from the installed base, as well as training and certification courses through Lifeloc University, its online learning platform. Lifeloc sells to workplace and international customers through distributors, while law enforcement, corrections, and OEM customers are sold to directly. Regulatory mandates are a key demand driver — the DOT's Omnibus Transportation Employee Testing Act requires alcohol testing for safety-sensitive transportation workers, creating a captive market for workplace testing equipment. Lifeloc is also developing SpinDetect, a drug-of-abuse testing platform that uses microfluidics technology to detect delta-9-THC from oral fluid samples. SpinDetect is pre-revenue, with beta testing targeted for 2026 and a commercial launch later that year.