Professional breathalyzer

The ALERT™ J4X is a breathalyzer used by law enforcement officers worldwide. The ALERT™ J4X uses a fuel cell sensor to ensure the highest quality results. It also operates with a single button, making it easier and faster to obtain Breath Alcohol Concentration (BrAC) level.

Each ALERT™ J4X breathalyzer package comes with 2 AA batteries, DC adapter, 5 mouthpieces, instruction guide and a durable carry case.

  • 1 year warranty offered to ensure that your device is taken care of.
  • DOT certified breathalyzer.
  • Industry trusted electrochemical sensor provides you with accurate test results every time.
  • Saves you time with results available within 30 seconds.
  • One button operation so it is easy to use.
  • Displays a calibration reminder for your convenience.
  • You will only need to calibrate it once in a year.
Handset size 135 mm x 59 mm x 30 mm
Handset weight 115 grams
Sensor Electrochemical (fuel cell)
Specificity Alcohol only, no response to ketones or hydrocarbons
Ambient temperature -20°C to +50°C
Initial test < 45 seconds
Breath sample 5 seconds
Recycle (recovery) time < 90 seconds
BAC result mg/L
Range of measurement 0 to 500 mg % (0.00 to 0.50 % BAC)
Accuracy ± 5 % @ 100 mg % (± 0.005 @ 0.10 % BAC)
Display LCD display with LED mouthpiece manifold
Battery 2 AA batteries
Mouthpiece Disposable (95-000145)
Calibration ALCOSIM™ or equivalent
Last test recall Yes
Complete package Case, DC car adaptors, mouthpieces

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