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Alco-Sensor® IV

The Alco-Sensor IV is an evidential grade handheld breath alcohol tester, providing a simple, accurate and economical method of determining a subject’s breath alcohol concentration with evidential grade accuracy. It is the most widely used breath testing instrument today.

Features Include:

  • Intoximeter’s reliable, top-of-the-line integrated fuel cell technology
  • Automated software driven test protocol
  • LED display with step by step instructions for fail-safe testing
  • Standard three digit readout
  • Easy operation, with mouthpiece powering the instrument “on” and “off”
  • Mouthpiece release feature eliminates operator contact with a used mouthpiece
Analytical System Utilizes an Intoximeters electrochemical fuel cell sensor which generates an electrical response that is proportional to the Breath Alcohol Concentration in the provided, fixed volume sample. The fuel cell sensor is highly selective for alcohol. It does not respond to acetone or other substances found in the human breath after a fifteen minute deprivation period.
Measurement Types Direct Test / Manual Sample
Direct Test / Automatic Sample
Measurement Range .000 to .400 g/210L (custom ranges and units of measure are available)
Accuracy and Precision Meets the NHTSA model specifications for Evidential Breath Test Devices
Environmental Limitations Instrument is designed to be used and has a proven track record in most all environments that an operator exposes breath alcohol testing instruments to. Instrument operates in a wide range of temperatures, ambient humidity, and atmospheric pressures.
Mouthpiece Direct Sample – Intoximeters designed, one-way mouthpiece provides both a means to turn the instrument on without damaging the on switch mechanism and provides a tested and proven mouthpiece that produces accurate and repeatable results with minimal backdraw.
Visual Output
Highly visible red, four character LED display
Audio Output
Audible tone to support visual messaging
Data Storage Last test
Print Capable Yes, with optional RBT IV printer kit
Power Options Disposable Batteries – Single 9V alkaline battery
Optional Rechargeable Batteries – 9V rechargeable battery (battery charger sold separately)
Case Construction Instrument – Metal fiber impregnated, impact resistant ABS plastic to protect the instrument from rough handling and provide radio frequency shielding
Carrying case – Water tight, hard plastic carrying case is provided in standard package
Physical Instrument Dimensions – 5.5″ x 3.5″ x 1.5″
Instrument Weight (with batteries) – .69 lbs.
Standard Carrying Case Dimensions – 7″ x 4″ 8.5″
Standard Carrying Case Weight (loaded) – 2.2 lbs.
Approvals NHTSA (US DOT) EBT, Inquire for list of approved US states or certifications in countries outside of the USA. CE Mark
Standard Package Includes Printed Manual
25 Mouthpieces
Instrument Options
Training Intoximeters offers in person training and has a variety of training tools available to help a user cascade training to their own operators. Contact our training department for more information (see Training section of our website at www.intox.com/training).


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