Professional breathalyzer

ALERT J4X is a reliable handheld breath alcohol tester, perfect for industrial safety and law enforcement officials who require accurate results in the field. Stop impaired driving at the source with this professional partner.

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Reliable results on the go

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Intuitive operation

The intuitive, easy to understand interface and on-screen icons guide you through the breath testing process. Novices and professionals alike appreciate this tester’s capabilities and usability in the field.

Colour-coded results

The mouthpiece port glows three different colours to indicate the range of measurement alongside a three-digit readout on the display. Simple, accurate breath alcohol testing.

Reliable sensor

ALERT J4X uses an electrochemical sensor, the standard for law-enforcement breath alcohol testers, ensuring both stability and accuracy.

Technical specifications

specs Sensor
specs Display
Three-digit LCD
specs Analysis Time
≺ 30 seconds
specs USB connection
Micro USB port
specs Accuracy
± 5 @ 100 mg/dL
specs Battery
2 AA alkaline

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