Senseair A ONE

The purpose of Senseair A ONE is to determine breath alcohol concentration in human exhalation. Senseair A ONE is designed to be integrated into breath alcohol detection systems to reduce the risk of driving under the influence of alcohol.

  • Accept highly diluted breath samples
  • No mouthpiece needed
  • Hygienic, touchless system
  • Short measurement time
  • Clean behind-panel installation

Standard specification


Senseair A ONE

Measurement unit

BrAC, mg/l

Measurement method

Contactless (mouthpiece-free)

Acceptable distance to sensor

0 40 cm

Operating principle

Non-dispersive infrared (NDIR)

Operating range

-40 +85 °C, 0 95% RH (non-condensing)

Measurement range, BrAC

0 3.2 mg/l

Accuracy BrAC

±7.5% of reading or ±0.015 mg/l, whichever is larger

Precision BrAC

5% of reading or 0.015 mg/l, whichever is larger

Warm-up time @+20°C

<15 sec

Pressure dependence

Internally compensated in the range 80 kPa... 110 kPa

Power supply

12 V DC nominal, ±20%

Peak current

10 A at start-up (120 W)

Average current, typical

Less than 0.8 A (10 W)

Dimensions (L x W x H)

174.5 x 56 x 28 mm


240 g

Communication interface


HMI (Human to Machine Interface) options

Digital I/O, low voltage CMOS levels

Compliance measurement performance


Compliance EMC


Senseair A One


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