What f'ing hygrometer do I need to buy that's accurate? I've tried the salt test in zip lock bag and I haven't seen 75% on 4 diff hygrometers. Why is this so
Amazon.com: Xikar Purotemp Digital Gauge Hygrometer, Accurate Right Out of The Box, 15-Second Refresh Rate, : Patio, Lawn & Garden
REED Instruments - Thermometer/Hygrometers & Barometers; Minimum Relative Humidity (%): 0; Maximum Relative Humidity (%): 100.00; Minimum Temperature (C): -20.00; Minimum Temperature (F): -4.000; Maximum Temperature (C): 60.00; Maximum Temperature (F ...
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