Lion Alcolmeter® 500


The Lion Alcolmeter® 500 breathalyser is a highly portable and quantitative breath alcohol screening tool that is widely utilised by law enforcement agencies throughout the world. It employs the Lion fuel cell sensor, which provides quick and precise data. Fuel cell technology, unlike semi-conductors, is alcohol-specific and unlikely to react with other chemicals in a donor’s breath.

This breathalyser is used extensively by Police Forces around the world, mainly for screening but also for evidential testing, and is Type Approved by the Home Office, Great Britain, for UK Police use in the United Kingdom.
The operator switches the instrument on and, when instructed, attaches a new mouthpiece to the small sampling port. He or she then instructs the subject to blow through it until the sample is taken. A short time later their alcohol level is shown on the clear, easy-to-read display: this is illuminated, for use at night.

When the reading has been taken, the operator removes and discards the mouthpiece. After a short delay, the instrument is ready to use again on the next subject, as required. The result of the last test can be recalled to the display.

This instrument must be checked with an alcohol standard at regular intervals, and recalibrated if required. The user may do this using an AlcoCal® product; or, alternatively, a service-by-mail.

A Printer Kit [printer plus carry case] is also available for use with this instrument. This generates a permanent record of each test, with space for the manual of other details, such as names and locations. This may also be ordered as the complete 500P if required.

Note – The Lion Alcolmeter® 500 breathalyser can also be used with a nasal tube, for sampling breath from a comatose patient in medical applications.



Please note: 0.10mg/L BrAC is equivalent to 10ug/100ml, and to 100ug/L

Alcohol Sensor Lion fuel cell (micro version)
Warm-up Time There is no heater, so no warm-up time
Response Time Typically 4s at 0.00mg/L; within 10s if alcohol is present
Recovery Time Typically 5s at 0.00mg/L; within 30s up to 0.50mg/L and within 60s between 0.50 and 2.00mg/L
Operating Temperature Range 5 to +45°C: +10 to +40°C for optimum operation
Power Supply 2 x AA cells give at least 750 breath tests
Measuring Range 0.02 to 2.00mg/L BrAC, or equivalent in other units
Calibration Standard Either a dry-gas or a wet-vapour simulator
Calibration Checking: Recommended once every two monthsCalibration Adjustment: Should not be required more than once a year
Dimensions 125 x 65 x 30mm
Weight Approximately 140g, with batteries
Warranty One year, parts and labour
Specificity Unaffected by all other likely breath contaminants
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