Fault Description

Possible Reason

Solutions

Unable to Power On

Low battery

Replace new batteries

The battery is not installed

Install the battery correctly according to the battery label

Circuit fault

Contact dealers or manufacturer

No response when blowing

Not fully warmed up

Warm up several times

Circuit fault

Contact dealers or manufacturer

No results are displayed when blowing

Residual gas in the product

Rewarm up the product

Not blowing within the time

Please blow during "BIOW"

Have results without blowing

Residual gas in the product

Warm up several times

Several test results are different

Test immediately after drinking

Test 20 minutes after drinking

The blowing time is different

It is recommended to take a deep breath for five seconds

Wrong Display

Expired sensor

Contact dealers or manufacturer to replace the Sensor

Over the specified working conditions

Please be used in specified conditions

Long time no calibration

Calibrate the tester in time