2. Test instructions
2.1. Use the Power button to turn the breathalyzer on.
2.2. Breathalyzer turns on and emits a short beep. The "PH"
message is shown on the screen for a brief moment. Then, it is
displaced by a countdown timer that shows the test preparation
time. Please wait. After 20 seconds the device beeps and the
screen shows "BLOW" message. Now you can start the test.
2.3. The first step is to take a deep breath, then blow directly
into the mouthpiece's hole until you hear a beep sound.
2.4. When the test is completed the device beeps, and the
result is displayed on the LCD screen. The alarm is off as long
as the concentration of alcohol in breath is lower than the
present level. However, when it is exceeded, the device emits
long beep sound and the red warning LED turns on. The test
result is displayed on the screen for 35 seconds, then the
device turns off.
2.5. If you need to do the test again, please repeat the steps
described in sections 2.2 - 2.4.
3. Usage notes
3.1. Do not allow the device to be dropped or exposed to shock.
3.2. The device may not function properly in places with a
high concentration of gases.
3.3. The tests performed at low-battery condition are of
reduced measurement accuracy, which increases the risk of
incorrect results, different from the actual values.
3.4. To prevent measurement errors and reduce the risk of
incorrect results, when you stop drinking, please wait 10
minutes before starting the test.
3.5. When operating the device please strictly follow the
instructions indicated in this manual. If the device has not