IMPORTANT NOTES
Do.not.drink.alcohol.at.least.15.minutes.before.testing.
Blow.evenly.into.the.mouthpiece.until.the.signal.tone.stops.
If.the.blowing-in.is.too.short.or.interrupted,.Found Suck/
Blow Not Found/Flow off/Flow Error.is.displayed..Re-
peat.the.test.
If.the.temperature.changes.considerably,.wait.a.few.min-
utes.before.using.the.device.
Only.use.the.device.in.a.temperature.range.of.0.°C.to.
40.°C.(3.°F.to.104.°F).
To.ensure.that.the.measurement.results.are.within.the.
specified.accuracy.range,.the.device.should.be.calibrated.
every.6.months.
Never.store.the.device.in.a.room.with.corrosive.gases.
Never.store.the.device.under.sunlight.
Avoid.damage.to.the.device.by.shocks.or.dropping.
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