Coin operated alcohol tester, proffessional alcohol tester, coin operated breathalyzer, alcohol tester 1.Description AT309, coin-operated Breath Alcohol Tester, is designed to measure alcohol concentration in the human body.  With advanced fuel cell alcohol sensor, this device has excellent sensitivity and reproducibility.  Reasonable and easy testing process, complete function make it versatile in many occasions.  When the alcohol content exceeds the preset alarming level, it will send out an alarm warning  and show the result directly and clearly on the digital LCD display.   2.Main Technical Data Model AT319 Sensor type Fuel cell sensor Test Range 0.000~4.000g/L(0.000~2.000mg/L, 0~440mg/100mL,0.000~0.400%BAC, 0.000~0.400g/100mL,0.000~2.000‰BAC) Resolution 0.002g/L Preheating time ≤1min Warning level 0.180g/L Danger level 0.500g/L Environment Temperature 0°C~50°C  Relative humidity ≤95% No Dews Storage temperature -20°C~60°C Display Four digits LCD display Test process and result are showed by the red, green, and yellow indicator light  Warning method Audio and light Working Voltage Input AC100V~AC240V,50/60HZ Output DC12V/1.5A Indication manne g/L ,mg/L,mg/100mL,%BAC(g/100mL),‰BAC optional Accuracy ±8% Coin for single time 0 —— 15 (For 0, the tester can be tested without coin) Coin diameter 15mm~29mm Coin Thickness 1.8mm~3.0mm Coin capacity 200pcs Straw box capacity 200pc(outside diameter is about 7mm) Sensor lifespan 2 years Dimension 250mm×105mm×400mm Weight About 4kg