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Humidity Meters

Selection Guide

%RHTemperature Dew Point Wet BulbIR Thermometer Max /MinDifferential Temperature External Temp. Probe AvailableRemote Probe Calibration Solutions AvailableBig Digit Display DataloggingPC Interface Graphical DisplayAudible and/or Visual Alarm Real Time Stamp NIST AvailableTime / StopwatchAir Velocity

Psychrometers

RH300 • • •••••• •RH350••••••• •••• •RH390••••• •RH401••••••••
RH300 RH350 RH390 RH401 RH101 4465CF 445580 44550 EA20 RH520 42270/75 407445 •

Hygro-Thermometers

RH101••••• • 4465CF•• • 445580••• • •44550•••

Dataloggers

EA20•• • •• • • • EA25•• • • • • ••• RH520•• • • • • • • • • • •42270/75•• •• • • 407445••• • • • •

Indicators

445702••• • 445703••• • 445715••• • • • •445814 • • • • •
445702 445703 445715 445815 HW30 45158 45160 407412 445815•• ••• • • •

Specialty Meters

HW30 • • • •45158 • • • •45160 • • • • •407412 • • • • • • • •

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Extech Instruments Corporation, 285 Bear Hill Road, Waltham, MA 02451
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