Fleet and Logistics Operators

ALCOKSON ALC-303 and ALC-308 vehicle alcohol interlocks with fuel cell sensor, 0.000-0.500% BAC range, and 12-month calibration interval.

ALCOKSON breath alcohol tester used for depot screening before keys are issued
Industries

What Makes This Setting Different

Vehicle alcohol interlocks prevent a vehicle from starting if the driver has consumed alcohol. The ALC-303 and ALC-308 models use a premium fuel cell sensor to measure breath alcohol concentration with a published accuracy of +/-0.005% at 0.050% BAC. They are designed for continuous operation at fleet depots, where drivers must be screened before shift start, even during overnight dispatches when no supervisor is present.

Pain points we hear

  • A vehicle that starts without screening creates a safety risk and a liability exposure
  • No supervisor at night means no one to confirm the test was done
  • A driver who fails a test must be able to retest without stopping the shift
  • A documented override procedure is needed for operational continuity
  • A failed test must be recorded and traceable to the individual driver

What Buyers Need

  • A system that prevents vehicle start until a breath test is passed
  • Hardware that operates reliably from -20 to 65 degrees Celsius
  • A documented test result linked to the driver and time of test
  • A retest option during the journey with a recorded override
  • A system that can be configured to match the local legal threshold

Typical Scenarios

  • Truck depot at 02:00 with drivers arriving on a night shift and no supervisor present
  • Bus fleet dispatching at 05:00 with 30 drivers arriving in 15 minutes
  • Remote yard where a driver fails the test and needs to retest before starting
  • Insurer audit requiring proof of a screening procedure for every vehicle dispatched
  • Contractor site where a driver must be screened before being allowed to operate a vehicle
Stage by Stage

How the Programme Runs

1

Configure the alarm threshold

Problem A policy that requires zero tolerance still needs a defined number the device can be set to

How we solve it The alarm point is set at the service centre to 0.02%, 0.05%, or 0.08% before shipment

2

Integrate with vehicle start circuit

Problem The interlock must work with both 9V and 36V DC systems across different vehicle types

How we solve it The control box supports 9V or 36V DC input, allowing use in cars, trucks, and buses

3

Link handset to control box

Problem A loose or faulty connection can cause a false pass or prevent start

How we solve it The handset and control box communicate via UART, a reliable serial link

4

Record and store test data

Problem A failed test must be logged and traceable to the driver and time

How we solve it The system stores the test result and time, and can send data via RS-485 or RS232 to external systems

Delivery

What You Get When You Order

  • Units are configured for the destination market before shipment
  • Calibration interval is confirmed in writing at order time
  • The alarm point is set at the service centre and cannot be changed by the user
  • The handset and control box are tested together before shipping
FAQ

Questions Buyers Ask Before Ordering

Which model should I start with?
The ALC-303 if you are screening at a depot with a mix of vehicles. The ALC-308 if you need a more compact control box or a different mounting option.
How long does it take to warm up in cold weather?
Approximately 120 seconds at -20°C and 180 seconds at -40°C. The unit is designed to operate in extreme cold.
Can the alarm point be changed after delivery?
It is set at the service centre before shipment. Contact us with the new threshold and we will reconfigure the unit.
What is included with each unit?
One handset, one control box, and one cable for the UART link. Additional cables and mounting hardware are available on request.
How often does the sensor need recalibration?
Every 12 months. The calibration interval is stated in the published specification.
Can the system communicate with external devices?
Yes. The control box supports RS-485 and RS232 for data transfer to fleet management or safety systems.
What is the lead time and minimum order?
Both are confirmed per order because they depend on alarm point configuration and any branding. Ask when you request a quote.

Put a screening programme in place for fleet and logistics operators

Send the number of gates or vehicles, the shift pattern and the market you operate in. We will name the models and the configuration and put the figures in writing.