Alco-Sensor FST - LE

Ergonomic Design, One-handed Operation

The Alco-Sensor FST fits comfortably into the operators right or left hand. A single press of the front button starts a test sequence. A second button at the back of the grip accesses additional menu options and features. One-handed operation is particularly valuable for law enforcement, allowing officers to keep one hand free to control unpredictable subjects. 

Extra-fast Screening Without Changing Mouthpieces

The passive test feature enables an operator to screen many people very quickly for the presence of alcohol. In passive test mode the Alco-Sensor FST can perform a test every 10 seconds. Because subjects blow at the sampling cup, but do not touch their mouth to it, there is no need to change the sampling cup for every test. This saves time and saves the cost of individual mouthpieces. 

Evidential Accuracy

U.S. Dept. of Transportation has approved the Alco-Sensor FST as an evidential breath testing device. Almost every state has approved the Alco-Sensor FST for use by law enforcement agencies as a PBT (Preliminary Breath Tester). Alco-Sensor FST accuracy exceeds +/- .005 at .100 BrAC.

 Fool-proof Results with Automatic Breath Sampling

The Alco-Sensor FST monitors a subjects breath and performs a test only when the subject delivers a continuous deep breath sample. Automatic breath sampling ensures precise, accurate results. The operator can manually override the automatic breath sample feature to test subject's with shy lung or who are uncooperative.


Sensor type

Electrochemical Oxidation (fuel-cell)

Range of measurement

.000 - .400 BrAC

Accuracy and precision

U.S. DOT approved for evidential use

Breath sampling


Response time

5 seconds negative results, 5 - 15 seconds positive results

Power requirement

2 AA batteries (included)

Test mode



Microprocessor controlled, using gas or simulator


Last test

Print capability


Temperature range

0 - 40 C


2 x 4 , 6 oz


One year, parts and labor


  • Hard-shell carrying case
  • 25 mouthpieces
  • 2 passive sampling cups
  • Drink sniffer accessory
  • 2 AA batteries
  • Rubber grip and bezel
  • Wrist strap
  • CD containing manual and operator training course

Accuracy Checks and Calibration Adjustments
There are two procedures used to maintain the accuracy of alcohol testing instruments. The operator performs the Accuracy Check procedure to determine if the instrument is reading correctly. If the Accuracy Check procedure determines that the instrument is not reading correctly, the operator performs a Calibration Adjustment procedure.
Frequency of Accuracy Checks
In general, Intoximeters recommends performing Accuracy Checks at least once a month. Programs may develop their own policies to perform Accuracy Checks at more frequent intervals.
Frequency of Calibration Adjustments
In general, Intoximeters does not require the operator to perform periodic Calibration Adjustments. Calibration Adjustments are performed only when an Accuracy Check procedure determines that the instrument is not reading correctly. Agencies may develop their own policies that require periodic Calibration Adjustments.
Accuracy Check and Calibration Equipment
The following equipment may be used to perform Accuracy Checks and Calibration Adjustments with the FST.
Mini Alcohol Can (for non-evidential use)
Alcohol Gas Tank

Treatment Facilities Law Enforcement Schools Corrections
  • Automatic breath sampling eliminates operator error
  • Fuel cell sensor gives evidential accurate results, eliminates false positives
  • Passive mode can test many people quickly without changing mouthpiece
  • Ergonomic one-handed operation leaves one hand free to control subject
  • Back-facing display allows operator to observe subject and display while conducting test
  • Drink sniffer attachment can test beverage for presence of alcohol
  • GSA Pricing available for Federal Agencies
Price $555.00

Related products:

Alco-Sensor FST Mouthpiece
Alco-Sensor FST Mouthpiece
Alco-Sensor FST Sampling Cup
Alco-Sensor FST Sampling Cup
Alco-Sensor FST Operator Training
Alco-Sensor FST Operator Training
Regulator 6 LPM
Regulator 6 LPM