The AL6000 alcohol tester analyses the concentration of alcohol in the breath, displaying it in mg/ml (promille). The AL6000 detects the alcohol with a semi-conductable sensor, which is replaceable. The scope of the device is 0,0 - 4,0 promille, the device releases a signal when 0,5 or more promille is reached. The results are shown in two decimals. Sensor must be replaced after approximately 300 tests, the device is calibrated after the replacement. AL6000 is 99,9% reliable and CE and DOT certified. 50 mouth pieces are included.