Best Honeywell C7089R1013 Wireless Outdoor Sensor Deals

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List Price: $122.08
Sale Price: $49.99
Today's Bonus: 59% Off

This sensor allows the Honeywell thermostat to control humidity and ventilation indoors, taking into account outdoor temperature and humidity. It allows locking out the heat pump when outdoor temperature falls below the breakeven temperature. It also adjusts indoor humidity in order to avoid condensation on the inside of the windows. The only drawback is that it is not possible to calibrate the humidity sensor (the outdoor temperature reading can be calibrated/offset via the thermostat itself). The original unit I purchased was always reading much higher humidity levels than actual. The replacement unit shows accurate readings.

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At first I was a bit frustrated that Honeywell chose to use a proprietary wireless communications standard their REDlink protocol instead of WiFi, but I suppose now I understand why. All their little devices run on AA batteries, and WiFi would certainly use too much power. At any rate, this little guy shows the outside temp and humidity back to your Honeywell 'stat, in my case, a Prestige 2.0 HD. Very cool.

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Was easy to connect and works great. Allows my thermostat to control the humidity based on outside temp to help keep the moisture on the windows from building up. The mounting bracket is solid and was easy to install, though it being winter out when I got this I don't have it in a permanent location, need to install on the North side of the house to prevent the sun from hitting it mid day.

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I gave it 4 stars because it works well and accurately tracks the temperature and humidity, but was very difficult to install.

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This unit installed very easily both on the outside of my home, and in connecting to my in-house wireless router. Could not have been easier. It has linked up nicely to our home thermostat control and is assisting in home humidificaton / dehuidification / air recirculation as intended.