Lifeloc Technologies Inc (OTC: LCTC) is a breath alcohol testing company that develops, manufactures, and markets portable hand-held breathalyzers, related accessories, supplies, and training. Revenue comes from transactional sales of breath alcohol testing instruments and consumables, including calibration gases such as ethanol-in-nitrogen cylinders, sold through a direct sales force and a distributor network. The company serves law enforcement, corrections, and workplace safety markets, competing against larger instrument manufacturers under DOT-mandated testing programs. Incorporated in Colorado in December 1983 and headquartered in Wheat Ridge, Colorado, Lifeloc introduced its first breath alcohol tester in 1989. The company operates as a single segment and reported operating losses in each year from 2021 through 2025 (per the FY2025 10-K filed 2026-03-27). A second product platform, SpinDetect, an oral-fluid drug testing device using microfluidic lab-on-a-disk architecture licensed from Sandia National Laboratories, is in development and not yet generating commercial revenue as of the filing date.

Revenue model

Transactional product sales of portable breath alcohol testers, accessories, and calibration supplies through direct sales and a distributor network. Orders are placed on an intermittent purchase order basis with no recurring contractual commitments disclosed. A standard one-year limited warranty on materials and workmanship is included with product sales.

Products and services

FC Series portable breath alcohol testers (law enforcement and corrections markets, sold worldwide since 2001), Workplace Series portable breath alcohol testers (workplace safety markets), calibration gases (ethanol-in-nitrogen cylinders for breath tester calibration), accessories and supplies, and training and education services via LifelocUniversity. SpinDetect, an oral-fluid drug detection platform using centrifugal microfluidic disk technology, is in late-stage development with commercial launch not yet achieved as of the FY2025 filing.

Customers and end markets

Law enforcement and corrections agencies (domestic and international), safety-sensitive transportation employers subject to DOT Omnibus Transportation Employee Testing Act of 1991 mandates, and workplace safety programs. The company also distributes through a network of third-party distributors. No customer concentration data or top-customer percentages were disclosed in the excerpts provided.

Value-chain role

Vertically integrated developer and manufacturer selling finished instruments and consumables directly and through distributors. SpinDetect technology is licensed from Sandia National Laboratories with Lifeloc holding a filed patent application on improvements, specifically the delta-9-THC isolation feature. The company also provides employee training and education as a complementary service.

Geographic exposure

Primary operations in Wheat Ridge, Colorado. FC Series instruments are sold worldwide. No geographic revenue breakdown by region was disclosed in the excerpts provided.

Competitors

Drager (Drugtest 5000), Sotoxa

Source: SEC 10-K, filed 2026-03-27

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