The LuxPro PSPU732T is the only accurate thermostat with a built in humidistat that I could find on the market that has an option to control the temperature and humidity independently. I could not find this feature on any Honeywell, White-Roger or any other digital thermostat with built in humidistat. This feature is especially useful for minimizing energy consumption in vacant summer homes in humid climates. It is an established fact that high humidity causes mold and mildew to form and that as long as the humidity is controlled the temperature can be allowed to get much higher in a vacant home than when it is occupied. Other manufacturers that make thermostats with built in humidistats turn off the AC if the conditioned air temperature falls 3 degrees below the thermostat's setting, even if the humidity is higher than set by the humidistat. I believe that this is done to prevent the AC to run continuously if the humidistat is set too low, a valid issue. However, with such products, if the thermostat is not set low enough the humidity can exceed the desired levels in periods when the temperature is moderate but the humidity is above the level where mold/mildew can form, a condition that can occur many times. In fact, if the temperature is set too low it can cause mold/mildew to form at outside wall sheet rocks where the humid outside air and the cold inside air meet. The LuxPro's humidistat is accurate to +-4 percent. It would be better if it would be tighter but this is the most accurate humidistat that I found, most manufacturers don't even state the humidistat accuracy and the one thermostat with similar features that I bought had a humidistat that was off by at least 20% making it useless for controlling humidity.
The LuxPo is a full featured programmable thermostat with a well designed human interface and an excellent display that has a back light which can be set to be on permanently or turn off a few seconds after the display is touched. It has many options that need to be set up properly, however, once it is set up it is easy to use. It has non-volatile memory and does not need batteries. There is an optional outdoor wireless temperature sensor for automatically controlling the humidity in cold climates which I didn't test.
If there is anything negative, it is the Instruction Manual that is missing the calibration information for the humidistat (probably very rarely needed) and could elaborate on the de-humidification and other options.
After researching all the digital thermostats with humidistats on the market I can say that the LuxPro is the best product for controlling the temperature and humidity in homes in warm climates that are vacant for extended periods.
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Easy to install and looks good. Programming is easy and instruction book is clear and easy to understand.
Thermostat is easy to adjust and display gives all the info necessary.
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