1. Log the device
You send or drop off the unit with its serial number and last calibration date. We record it against your organisation so the history stays traceable.
Calibration services
Breathalyzer calibration that keeps your results defensible
An uncalibrated breathalyzer is an untested one. We calibrate, verify and repair breath alcohol testers for workplaces, fleets, schools, hospitals and security teams — and return every device with a certificate showing the date performed and the next due date.
How a calibration is handled
2. Reference gas check
The sensor is tested against a known alcohol reference standard, then adjusted so readings fall back within the manufacturer's stated tolerance.
3. Function and repair check
Mouthpiece seat, pump, keypad, display, printer and battery are checked. If a part has failed we quote the repair before doing any work.
4. Certificate and next due date
The device is returned with a calibration certificate stating the date performed and the next due date, so your records stand up in an audit or dispute.
Devices we calibrate
- Fuel-cell professional units (8000T, Z5, S3, S4, S5, A50, A65)
- Semiconductor screening units (S6, AT250, H7)
- Wall-mounted station units (AT05 Wallmount)
- Vehicle interlock handsets (AlcoBlock AL-2)
- Devices from other manufacturers — confirm the model with us first
How often should you calibrate?
Calibration frequency depends on the sensor type, how many tests the device runs and what the manufacturer specifies for that model. As a general guide:
- Fuel-cell devices — typically calibrated every 6 to 12 months, or after a set number of tests, whichever comes first.
- Semiconductor devices — sensors drift faster, so intervals are usually shorter.
- High-volume sites — gate and shift testing can reach the test-count threshold long before the calendar date.
We confirm the exact interval for your specific model in writing before you commit — we do not apply one blanket interval to every device.
Turnaround, pricing and logistics
Turnaround
Confirmed per case once we see the model and its condition. Tell us your deadline and we will say plainly whether we can meet it.
Pricing
Quoted per device and per model. Fleet and multi-unit programmes are quoted as a batch, with an annual schedule if you want one.
Where
Nairobi workshop, with courier collection and return available. On-site visits are arranged for larger fleets — ask when you enquire.