Alcohol ignition interlock

ALCOLOCK WR3 measures the breath alcohol concentration (BrAC) of a driver and prevents the vehicle from starting if the driver BrAC is over a preset limit. Engineered specifically for impaired driving offenders, ALCOLOCK WR3 includes multiple features to prevent circumvention of the unit.

Request a quote

Reliable compliance monitoring

   Watch the video


Program compliance

ALCOLOCK WR3 settings can be customized to meet jurisdictional interlock program needs. They can be set to require random retests and trigger recalls after detecting a program violation.


ALCOLOCK WR3 uses breath signature technology to ensure that a breath sample has come directly from a human subject and has not been altered before the sensor performs the analysis.

Dual event logging

Dual event logging allows program administrators to monitor drivers in remote locations without compromising program integrity. The handset can be disconnected without losing valuable information.

Technical specifications

specs Sensor
specs Display
Graphic LCD
specs Analysis time
5 to 10 seconds
specs Automatic power down
specs Accuracy
±5 @ 50 mg/dL
specs Operating voltage
12 or 24 volt DC

Browse related products

Subscribe to our newsletter

Privacy Policy Terms of Use Terms of Sale After Sales Service Policy Trade-Mark and Trade-Name Policy Service Delivery Standards Canada Service Delivery Standards USA Program Services Canada Program Services USA