Product dimensions (L * W * H): 4.92 x 3.14 x 1.37 in Weight: 0.08kg Detection range: 0.00% -0.19% BAC & 0.00-0.99 g/l Alert Level: (Optional) 0.05% BAC; 0.50 ‰ BAC; 0.25 mg / l; 50mg / 101ml Accuracy: -0.01 - + 0.02% BAC Warm-up time: 10s Response time: less than 5s Powered by: 2 AAA batteries (not included)  Working temperature: 5 ° - 40 ° Package Included: 1x Professional Breathalyzer 5 x mouthpieces 1x user manual 1 x Key chain 1 x Carrying Case Note:  DO NOT smoke and eat for 20 minutes prior testing. DO NOT use the breath analyzer until 20 minutes after the last drink. Please wait at least 3 minutes to start the next test after the last test. After switching on, the warm up takes 15 seconds, Afterwards, it beeps and informs you that it should blow into the device, both are timed so that you know exactly when to do what, you have 10 seconds to blow into the device and then get the results. DO NOT blowing liquid into the breath pipe. Do not use these cleansers such as benzene, thinner or petrol to clean the product to avoid damaging its surface Do not fall it down or strike, otherwise, malfunction may be caused Do not try to repair, rebuild or dismantle any parts except for the battery replacement When not use the device for a long time, you are recommended to take out the batteries to prevent the damage due to battery leakage .  Our worry-free 24-month warranty and friendly customer service, contact us anytime!
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