My Max-Min Thermo Hygro from Dampp-Chaser shows -- -- when the RH goes below 24 per cent. Is this normal? Does anyone know why? Interesting to note that temperature reading will register over 100°F, save for the first number "1". Seems to me that it would be in our interest to show humidity readings less than 24 per cent in order to sell climate control systems. Blanks don't mean much to clients. John Lillico, RPT Oakville, Ontario
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