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List Price: $120.17
Sale Price: $56.78
Today's Bonus: 53% Off

I got this unit to monitor humidity inside an enclosure in a laboratory. It works quite well for this purpose and the humidifier control functions as advertised to allow some active control. From a cost standpoint, the unit is a real bargain even if it is only used as a 2-point humidity meter. The only drawback to the unit I received was that there is a 4 degree F temperature offset in the readings (it reads low). Since the unit has a temperature offset adjustment, it is straightforward to correct this error in the unit. Nonetheless, I would not expect a unit like this to exhibit an error of this magnitude out of the box.

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My whole house humidifier was setup to work only during the heating season in conjunction with the furnace. I live in Colorado where the humidity even in the summer is very low. This controller allows the humidifier to work independently from the furnace (still using the same ventilation system) and keep the humidity level in the house comfortable year around. The outside thermometer/hygrometer module makes the device smart enough that you do not need to change the humidity setting by hand for temperature changes outside (to prevent condensation issues). Installation and programming took me about 2 hrs.

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Very easy to set up and use, very accurate control of the humidity levels and also has an excellent program that eliminates window condensation in very cold weather. Worth every dime!

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I bought this to replace the controller on my LifeBreath 200Max HRV so I would have more control. The information provided was not enough to make the connection to the HRV since I do not have it also connected to my furnace or a humidifier. I called Honeywell and they refused to give any assistance. So if you do not know exactly how to wire this don't buy it.