Lifeloc Sentinel Breath Alcohol Screening Entry System

The SENTINEL is a fully automated breath alcohol screening system for employee, contractor and visitor access control.
SENTINEL alcohol screening is self-administered, non-invasive and non-contact.
No consumables or operator attendance is required.




The SENTINEL is engineered for rapid and repeatable high volume screening in the Mining, Oil and Gas, and Construction industries.
Its robust design, field-proven alcohol sensing technology and ease of use provide long working life and exceptional subject compliance.

Easy to Integrate and Use
The Sentinel can stand alone or be sequenced with existing turnstiles, time clocks or other employee access control systems. Sentinel screening is completely non-invasive and self-administered. Test supervision is not required. Results are displayed in clear unambiguous internationally recognizable icons. Subject pre-qualification, instruction and test monitoring are not required.

Fast and Reliable
Tests are triggered automatically when the subject blows on the collector cone and take less than 2 seconds to complete. Results are delivered instantly on “negative for alcohol” tests and in under 10 seconds on positives. The Sentinel can easily handle hundreds of tests per hour ensuring that pre-shift screening flows smoothly without bottlenecks and lost time.

Single-use straws are not required and there are no recurring monthly charges. Annual calibration is easily performed in-place by non-technical staff without removing the Sentinel from service. The anodized aluminium housing protects against dust, dirt and vibration found in heavy industry. Sentinel comes with Lifeloc’s end-to-end 1 year warranty and additional extended warranty options.


Lifeloc Technologies

Additional information



Free Delivery: Within 5 working days Free!

Get it Faster!: Within 4 working days $24.99

3 Days Guaranteed Delivery: Within  3 working days $56.99

*Please note that all drug test kits will require a lead time of approximately 3weeks

If you are not completely satisfied with your purchase, simple return the products to us in their original, unopened, unused condition and packaging within 7 days of receipt and we will issue a full refund (excluding original and return delivery charge), or exchange for a different item, if preferred.

If the reason for the return is the product being faulty, do send us an email. We may request you take a photo of how the product mulfunction. Our customer service agent will confirm it via email and we will issue a full refund (excluding original and return delivery charge), or replace it for free (We will fully reimburse you the return shipping too!)