User manual

USERGUIDE
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HumidityAlert
PortableHygro‐Thermometer
withDewPoint
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ModelRH30
Introduction
ThankyouforselectingtheExtechModelRH30.TheRH30monitorsrelativehumidity,air
temperature,dewpointtemperature,andMAX‐MINreadings.TheRH30alsoincludesan
audible/visualhighhumidityalarm.Thisdeviceisshippedfullytestedandcalibratedand,with
properuse,willprovideyearsofreliableservice.Pleasevisit
theExtechInstrumentswebsite
(www.extech.com)tocheckforthelatestversionofthisUserGuide.ExtechInstrumentsisanISO‐
9001certifiedcompany.
Safety
GeneralSafety
o Pleasereadallsafetyandinstructionalinformation beforeusingthisproduct.
o Thisproductisintendedforhomeuseonly.
o Unauthorizedrepairs,modifications,orotherchangestotheproductarenotsupported.
o Thisproductisnotintendedforuseinmedicalpractices.
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Caution!Riskof
Injury!
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o Keepthisproductanditsbatteriesoutofthereachofchildrenandpets.
o Batteries must not be placed in fire, short circuited, taken apart, or discharged. Risk of
explosion!
o Batteries can be fatal if swallowed. Contact medical emergency personnel if batteries are
swallowed.
o Batteries
contain harmful acids.Weakbatteries should bechanged as soonaspossible to
preventdamagecausedbyleakingbatteries.
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ProductSafety!
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o Donotplacethisproductnearextremetemperatures,vibration,orshock
o Neverholdaprobedirectlyinoroverfire
o Donotimmersethemetersin
anyliquid