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Instruction Manual Model WS 9119 Digital Thermo-Hygrometer with Comfort Index Buttons RESET (back) Installation 1. Slide open the battery cover at the back of your unit. 2. Insert 2 x AAA batteries into the battery compartment by observing the correct + / - polarity signs inside the battery compartment.
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2. Relative Humidity 5 points 79% - 95% 4 points 66% - 78% 3 points 50% - 65% 2 points 36% - 49% 1 point 20% - 35% 3. Comfort Index 5 bars RH% at 46% - 60% range 4 bars RH% at 41% - 45% or 61% - 65% range 3 bars RH% at 36% - 40% or 66% - 70% range...
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