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Extech Instruments RHT20, User Manual

The Extech Instruments RHT20 is a high-quality, reliable device for measuring temperature and humidity levels. To get the most out of its features, make sure to download the free user manual from our website. This comprehensive manual provides detailed instructions on operating the RHT20, ensuring optimal performance and accuracy.

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User Manual

Humidity & Temperature Datalogger

Model RHT20

Additional

User

Manual

Translations

available

at

www.extech.com

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Summary of Contents for RHT20

Page 1: ...User Manual Humidity Temperature Datalogger Model RHT20 Additional User Manual Translations available at www extech com ...

Page 2: ...s Product Registration and Customer Support Description 1 Record LED 2 Alarm LED 3 LCD Display 4 Temperature Humidity display selection 5 MAX MIN display selection 6 Battery Compartment rear 7 Temperature and Humidity sensors 8 USB PC port bottom Display Description Full battery symbol Weak battery symbol Replace battery when this appears Battery life is more than 3 months DATE Current date is dis...

Page 3: ...hen the unit is datalogging 5 Alarm function When the measured value exceeds the programmed upper or lower limit and the LED function is selected in the software the ALM LED will flash one time per minute 6 If LO is displayed the temperature and humidity sensors need attention 7 The datalogger should be placed upright when in use 8 If used in low temperature high humidity environment the datalogge...

Page 4: ... operation is described in the HELP file Maintenance WARNING To avoid electrical shock disconnect the meter from any circuit and turn OFF the meter before opening the case Do not operate with an open case Battery Replacement 1 Remove the green protective cover by pushing the bottom of the meter until it slides through the opening at the top 2 Remove the two Phillips head screws that secure the bat...

Page 5: ... appears on the LCD Power supply 3 6V Lithium Battery Battery life 3 months approximately Operating Temperature 40 to 158 F 40 to 70 C Operating Humidity 0 to 100 RH LCD Operating Temperature 13 F to 158 F 25 C to 70 C Dimensions 3 7x1 9x1 2 94 4x48 9x31 2mm Weight 3 2oz 90 7g Range Accuracy Relative Humidity 0 to 20 and 80 to 100 5 0 20 to 40 and 60 to 80 3 5 40 to 60 3 0 Temperature 14 to 104 F ...

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