A drunk driver behind the wheel of a staff bus, a tanker or a delivery truck puts everyone on the road at risk. A supervisor can't reliably spot a driver who has had a drink by looking at them. A breath analyser can, in seconds. Testing drivers before they take the keys is one of the simplest ways a fleet operator, transporter, school or factory can cut the risk of an alcohol-related crash. This guide covers the KTI range of alcohol breath analysers, which type suits which job, how to run a pre-trip test properly, and how to set up testing for different kinds of fleets.

Screen every driver quickly and hygienically at the gate.
Choose the right breath analyser

Product	Best for	Key details
Alcohol Detector AT7000	Quick, hygienic screening of every driver at the gate	Fuel cell sensor, no mouthpiece needed, active and passive test modes, result in about a second
Alcohol Detector iBlow10	High-volume screening at depots and bus bays	Contactless, fuel cell sensor, fast results
Quick Test MS-20Q with Printer	Screening with a printed slip	Electrochemical sensor, quick-test inlet, Bluetooth printing
Wall Mounted Breathalyzer with Bluetooth Printer	Fixed test point at the transport gate or driver room	Fuel cell sensor, 88,000 test records with time stamp, USB download, Bluetooth printer
AlcoPatrol PT100P with Printer	Supervisors testing at several depots	Portable, fuel cell sensor, 2,000-test memory, compact printer
MS9000C with Printer and Camera	Confirmatory tests that may be disputed	Fuel cell sensor, built-in thermal printer, camera and touch screen
Alcovisor Jupiter X with Camera and Printer	Large fleets that want full digital records	Fuel cell sensor, photo captured during the blow, GPS, 100,000-test memory, built-in printer
A8080T Breath Analyser with Camera	Field checks on routes and at sites	Active and passive modes, GPS, colour touch display, optional 5 MP camera
Mouthpiece for Alcohol Detector	Hygienic contact tests	Single-use mouthpieces, one per driver per test

How to choose
Think of testing in two stages. A screening test is quick and contactless. It tells you, in a second or two, whether a driver has alcohol on the breath. The AT7000 and iBlow10 do this job. A confirmatory test uses a fresh mouthpiece and a deep-lung sample, and produces a printed or photographed record. The MS9000C and Jupiter X do this job, and their camera stops anyone blowing on someone else's behalf. Most fleets need one of each: a screener for every driver, and a printer-camera unit for anyone who fails. Choose fuel cell sensors for testing you rely on, because they are specific to alcohol and hold their calibration well.
How to run a pre-trip breath test, step by step

1. Write the rule down. Section 185 of the Motor Vehicles Act, 1988 makes it an offence to drive with more than 30 mg of alcohol per 100 ml of blood, as detected by a breath analyser. Many companies set a stricter zero-tolerance rule for their own drivers. State yours in the transport policy and tell every driver and contractor.
2. Wait 15 minutes after eating, drinking, smoking or mouthwash. Alcohol left in the mouth gives a falsely high reading. Ask the driver to wait, or rinse with water and wait, before testing.
3. Screen every driver. Hold the contactless screener close to the driver's mouth and ask them to blow steadily for the time the device asks for. A pass means they can go.
4. Confirm any positive result. Fit a new mouthpiece to the printer-camera unit and ask for a long, steady blow. Most professional units reject a short or weak blow.
5. Print and record. Print the slip, note the device serial number, the time and the supervisor's name, and keep it in the test register.
6. Take the keys. A driver who fails doesn't drive. Arrange a relief driver and follow your HR procedure. Don't argue at the gate.
7. Test at random too. Besides pre-trip tests, test a random share of drivers on return trips, night shifts and long routes, so testing is never predictable.

Confirm any positive with a mouthpiece test that prints and photographs the result.
Testing set-up by type of fleet

• Staff buses and school transport: a wall-mounted breathalyzer in the driver room so every driver tests before collecting the keys, plus a PT100P for the transport supervisor.
• Logistics and transport companies: an AT7000 at each depot gate for screening, and a Jupiter X for confirmatory tests with photo and GPS records.
• Factories, mines and ports with internal vehicles: an iBlow10 at the shift gate for forklift, crane and dumper operators, and an MS9000C in the safety office.
• Field and route checks: an A8080T for supervisors who check drivers on the road or at customer sites.

A fixed test point means no driver collects the keys without testing.
Maintenance tips
Calibrate every analyser on the schedule in its manual, and write the next due date on a label on the device. Let the unit warm up and complete its self-check before the first test of the shift. Store it away from heat, direct sun, perfume, sanitiser and cleaning solvents, as alcohol vapour from these can affect the sensor. Use a fresh mouthpiece for every contact test, and keep a box of spares with the device. Charge or replace batteries before they run low, keep printer rolls in stock, and download the test memory to a PC every month.
Frequently asked questions
Can a company test drivers who are not its employees?
Yes, if your contract and site rules say so. Write the testing clause into transporter and contractor agreements, and tell drivers before they arrive.
Does hand sanitiser or mouthwash affect the result?
It can. Mouthwash and some medicines leave alcohol in the mouth. Waiting 15 minutes and rinsing with water before the test avoids a false positive.
Contactless or mouthpiece?
Contactless for quick, hygienic screening of everyone. Mouthpiece with a printer and camera when the result needs to be recorded and defended.
How often should a breath analyser be calibrated?
Follow the manufacturer's schedule, which is usually set by time or by number of tests. Ask KTI for the calibration interval of the model you choose before you buy.
Keep drink-driving off your fleet. Browse the full range of alcohol detectors and breath analysers, including contactless and contact models, or use Enquiry Now on any product page for bulk and dealer pricing.