SafeDrive
 Commercial
grade
User
Self-Calibration*
2-Step
user calibration
Light
indicators
No
mouthpiece required
90
days warranty
*Self-Calibration
Feature:
User "self-calibration" will not restore the
sensor to precise values, but it may improve general
sensor accuracy. The sensor is sensitive to temperature,
humidity, and air quality and the sensor readings may
be affected. Self-calibration does not reliably maintain
accuracy over a long period.
How often do breathalyzers require Calibration?
It varies depending on the breathalyzer but it is recommended
for breathalyzers to be calibrated every 200~300 tests
or 4~12 months.
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Easy 2-step user
calibration:
1. Press and hold the operating button for 5 sec. Light
will go from 1st to 5th light, 1st to 5th light, and
then 5th to 1st.
2. Blow clean air 1 cm to 3cm away, without alcohol,
soda, or smoke.
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