Alcohol Interlock Drive Safe
Interlock Drive Safe Alcohol



Size:137 mm x 59 mm x 26 mm
Weight:155 grams
Sensor:Electrochemical (fuel cell)
Specificity:Alcohol only, no response to ketones or hydrocarbons
Ambient Temperature:0°C to 50°C
Initial Test:< 10 seconds
Breath Sample:5 second moderate and continuous breath sample
Analysis Time:< 10 seconds
Recycle (Recovery) Time:25 seconds
BAC Readout Format:BAC (g/dL, g/L); BrAC (mg/L, ?g/L, ?g/dL)
Range of Measurement:0.00 to 0.75 mg/L (150 mg/dL, 0.15 g/dL)
Accuracy:± 5% @ 0.50 mg/L (100 mg/dL, 0.10 g/L)

3 digit LCD with graph and tri-colour backlight

Power / Battery:2 AA
Battery life:1000 tests
Mouthpiece:Disposable (95-000250)
Calibration:ALCOSIM or equivalent
Alcolizer VC
Ignition Interlock
Alcohol Interlock



The Alcolizer VC is an interlock specifically designed for private or Commercial users and can be used in cars (12v) as well as buses and trucks (24v)! The Alcolizer VC is very simple to use and can also be used Conveniently as a personal breathalyser to test your Blood Alcohol Concentration (BAC).

 Reliable Accuracy

 The Alcolizer VC is a simple yet effective ignition interlock designed to accurately measure the BAC of the intended driver. It is installed directly to the vehicle’s ignition and electrical systems and prevents the vehicle from being started if the BAC result is over a pre-set level, usually set below the maximum legal BAC limit to drive.The VC uses the same advanced sensor technology used for years in police breath testers worldwide. It is precision engineered using state of the art electronics and electrochemical fuel cell sensor technology to give reliable, accurate and trouble free operation!

Easy to live with the VC uses the popular Alcolizer HH2 breathalyser to measure your BAC level. This connects to the electrical wiring of your car which allows it to act as an interlock, preventing the car from starting when alcohol is detected by the handset. The VC is small and you can take it out of your car to use as a personal breathalyser. Mouthpieces are supplied, and additional mouthpieces are available for purchase. The VC even tells you when it is due for recalibration!

 Easy Operation

 The design of a combined breathalyser and interlock makes the VC easy to operate. Simply press the “Test” button on the handset, the VC will tell you when it is ready. Then you would blow into the mouth piece and start car upon passing a BAC test!


 The Alcolizer VC requires recalibration and service approximately every 6 months. It will even tell you when it is due for service! Cost for calibration and service is around $50 including GST plus postage and handling. When the VC is due for calibration you would simply contact Guardian to make arrangements.

 The Bottom Line

 The Alcolizer VC is a reliable interlock for preventing drink driving.

Interlock WR3 Guardian
WR3 Ignition Interlock

The WR3 is an alcohol interlock device that is specifically designed for DUI offender ignition interlock programs. It combines evidential breath alcohol measurement technology with innovative anti-circumvention features to provide the leading choice in alcohol interlock devices.


The WR3 is an innovative breath alcohol testing instrument which is installed in a vehicle in a way that links its operation to the ignition, starter, electrical and other on-board systems. The purpose of the WR3 is to measure the blood alcohol concentration (BAC) of the intended driver and to prevent the vehicle from being started or operated if the BAC is over a preset limit.


The WR3 includes an advanced form of hum-tone detection as part of the means to prevent cheating. The intended driver must provide a moderate and continuous breath sample for a period of 5 seconds while simultaneously engaging a humming sound in order to satisfy the breath test requirement. Additionally, the breath flow rate is monitored to ensure a proper sample is being delivered before the breath alcohol measurement is taken. Running Retest the WR3 includes a provision for engaging a retest requirement on a random time basis to ensure that the driver has not been drinking since the vehicle was first started. A tone will sound and “retest” will be displayed to instruct the driver that a retest is required. If the test is not conducted, a sanction may be engaged.

Program Features

The WR3 is uniquely designed for DUI offender ignition interlock programs and can be tailored to meet specific program requirements of any jurisdiction. The interlock device records breathe test results and other data relevant to compliance with program conditions, which is made available for review by administering authorities

Guardian Interlock by Rowville Auto Electrics WR3

 Wr3 Guardian Interlock Training Video for Rowville Auto Electrics