Principle of measurements    Electrochemical/fuel cell sensor, alcohol specific
Measurement range (BrAC)    0.000mg/L～1.500mg/L
Resolution    0.0001 mg/L
Accuracy: Max. Measure error, in relation to ethanol standard    Ethanol Vapor Concentration 
C /(mg/L)    Deviation
    C<0.400    ±0.020mg/L
    0.400≤C<1.000    ±5%
    C≥1.000    ±20%
Repeatability of Indicating Value    Ethanol Vapor Concentration 
C /(mg/L)    Deviation
    C<0.400    0.007mg/L
    0.400≤C<1.000    1.75%
    C≥1.000    6%
Calibration    Every 6 months
Temperature Range-Operation    －5℃～45℃
Temperature Range-Storage    －20℃～70℃
Optimum Storage Condition    Temperature 20℃±5, Humidity: <80%RH, Pressure: 86kPa~106kPa, No vapor or electromagnetic disturbances in the environment are influencing the normal working conditions of the device.
Blowing Time    3 seconds (breath flow≥20L/min)
Warm-up Time    Less than 5 seconds after switching on
Recovery Time    5 seconds to 5 minutes, depends on Ethanol Vapor Concentration
Analysis Time    Less than 10 seconds
Display     128×64 dot matrix black and white screen
Dimensions     Approx. 127mm×60mm×28mm
Memory    10,000 records 
Operation Voltage    State of Charging    State of Operation
    5 V    DC 3.6～4.2V
Battery    Built-in 1000mAh/3.7V Li-ion polymerized battery
Weight    Approx. 115g