Introduction Thank you for selecting the Extech Model RH350. This device is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. Please visit the Extech Instruments website to check for the latest version of this User Guide.
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] button again to display the average (AVG) readings in memory. To exit the MIN/MAX/AVG mode, press the [M ] button. To clear the current min/max/avg readings in memory, press and hold the [M ] button for more than two seconds. RH350-en-GB_V2.5 11/14 actoolsupply.com...
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Note: A printer port is located on the side of the meter; however it is not functional on this model. Calibration The following verification and calibration procedures require the 33% and 75% RH reference bottles which are supplied with the Model RH350-CAL kit. Accuracy Verification Checking the 33% or 75% RH Calibration Insert meter’s sensor into the 33% or 75% salt reference bottle...
-40 to 85 C (-40 to 185 F); <99% RH non-condensing Power Supply 4 x 1.5V ‘AAA’ batteries Battery Life Approx. 300 hours Dimensions / Weight 230 x 57 x 44mm (9 x 2.2 x 1.7”); 153g (5.3 oz.) RH350-en-GB_V2.5 11/14 actoolsupply.com...
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Other Battery Safety Reminders Never dispose of batteries in a fire. Batteries may explode or leak. Never mix battery types. Always install new batteries of the same type. RH350-en-GB_V2.5 11/14 actoolsupply.com...
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