The WR3 uses breath signature technology to ensure that a breath sample has come directly from a human subject and has not been filtered. Dual even logging means that test information is securely stored in both the handset and control unit, making it impossible to tamper with the stored memory. For more information, please see the specifications and brochure below.

Handset Size: 150 mm x 48 mm x 50 mm
Handset Weight: 220 grams
Sensor: Electrochemical (fuel cell)
Specificity: Alcohol only, no response to ketones or hydrocarbon
Operating Temperature: -40°C to +85°C
Breath Sample: 5 second moderate and continuous breath sample
Analysis Time: 5 to 25 seconds
Recycle (Recovery) Time: 10 to 30 seconds
BAC Readout Format: Tri-colour LED (pass, warn, fail)
Range of Measurement: 0 to 1.00 mg/L
Accuracy: ± 0.02@ 0.20 mg/L
Display: Graphic LCD
Memory: 100,000 events log
Operating Voltage: 12 volt or 24 volt DC
Mouthpiece: Round (model: 95-000140)
Calibration: Alcohol/water simulator or dry gas