The CA 9000 Professional SG breathalyzer is a highquality breath alcohol tester. Equipped with an extremely sensitive electrochemical sensor, it provides accurate measurement results.Product features:possibility of calibration air flow sensor measurement memory measurement accuracy / 0.01 measurement range from 0.00 to 4 per mille LCD display audible alarm The CA 9000 Professional SG breathalyzer has a modern control system for proper operation of the analyzer, which checks it before and after each measurement. A highquality electrochemical sensor shows the measurement result in the range from 0 to 4 per mille on the illuminated, twocolor LCD display. The resolution of the indications is up to two decimal places. The breathalyzer is equipped with a temperature control module, which prevents the measurement if the tester's operating temperature range is exceeded. The device is equipped with a counter for the number of measurements made, and its memory is able to store the last ten measurements. Regardless of frequency of use, the CA 9000 Professional SG must be calibrated once every six months.MAIN ADVANTAGES Precise, platinum electrochemical sensor Pneumatic system of feeding a precisely defined air sample to the sensor Wide measuring range from 0.00 to 4.00 Display resolution up to two decimal places The air flow sensor controls the correctness of the measurement Short time to prepare for work High accuracy and repeatability of results Longterm stability of the measurement over time Alarm informing about exceeding the permissible alcohol level in the exhaled air Signaling a badly performed test Builtin temperature control module A function reminding you to perform a calibration Counter of performed measurements and memory of the last 10 results SET COMPOSITION calibrated and ready to use breathalyser 2 AAA alkaline batteries mouthpieces 3 pieces user manual in Polish In addition, the device uses a modern system to control the proper operation of the analyzer before and after each measurement. To minimize the measurement error and maximize the sensor's lifetime, the tester is equipped with a temperature control module. It makes it impossible to perform a measurement when the tester's operating temperature range is exceeded, which could result in component damage. The undoubted advantage of this device is the ability to define measurement units depending on the user's preferences (, mg / L,% BAC, g / L).SPECIFICATION Sensor: nextgeneration electrochemical measuring cell Measurement range: 0.00 4.00 , HI after exceeding the measuring range Measurement units : (per mille), mg / L,% BAC, g / L Display resolution: 0.01 Accuracy of indications : 0.05 , for 1.00 in temp. 25oC Exhalation time: 4 seconds Alarm threshold: 0.20 Memory: the last 10 measurement results Operating conditions: 0 40 C, humidity andlt;95% RH Storage conditions: 0 50 C, humidity andlt;95% RH Batteries: 2 x 1.5V DC alkaline batteries, AAA type Power off: 30 seconds after taking the measurement Battery discharge indication: yes Recommended calibration: every 6 12 months or after 500 measurements (whichever comes first) Display: 3 digit LCD, backlit, twocolor Dimensions: 114 x 47 x 24 mm Weight (with batteries): 85 g Housing: ABS plastic, impact resistant