Honeywell TM005X Wireless Indoor/Outdoor Thermo-Hygrometer by Honeywell
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List Price: Category: CE See more digital camera details and other models |
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Digital camera reviews of Honeywell TM005X Wireless Indoor/Outdoor Thermo-Hygrometer
Digital camera Review: Accurate????
Summary: 3 Stars
Not sure how accurate this is. It is about 3 degrees lower than my heat pump thermostat indicates. It is about 3% higher than another hygrometer I have. I did a calibration test on it, and it was off by 5%.
Looks nice, but not so accurate. At least it gives me some idea with a quick glance at it. Large numbers. Just need to take into account the lack of accuracy.
Digital camera Review: An excellent addition to our thermostat.
Summary: 5 Stars
So far as I can tell this is a very well made product and seems to be very accurate.Digital camera Review: An excellent product that will help you save energy, and your electric bill
Summary: 5 Stars
I bought 2 sets of this product, so I have two base stations and two remote sensors. I put them all side by side, along with two other older Bionaire units that may be the predecessor of the model, because the design look the same as the base station. All 6 units show temperature within a 1 degree F. The Honeywell units read higher humidity than the Bionaire, by about 5%, which is very good, and that's really all one would ever need for home use. Older analog humidity sensors are highly untrustworthy in my experience.
The reason I bought 2 sets is because I wanted two remote sensors, one in my screened porch for outdoor conditions and one for the basement. I only need 1 base station, but the cost of the set is almost the same as the remote sensor, so it makes sense to buy 2 sets. each base station will read up to 3 sensors, but they would be the same 3. So in my case, both base stations monitor the basement and the outdoor conditions.
A lot of people run a dehumidifier in the basement, which is really like running an air conditioner without venting the heat and moisture outdoor, so it can get the basement quite warm. In the summer, even when the main floor is not so warm, i would run the AC. The cooler dry air naturally goes down to the basement if I leave the door open. This cuts down the use of the dehumidifier a lot. They use about the same amount of power (500W or so). The AC vents the heat and moisture outdoor, keep the house more comfortable, so it's a better use of the same electric power.
On a hot day, when the sun goes down, the outside temperature cools off and one is tempted to turn off the AC and open the windows. However, quite often the outdoor humidity gets high at the same time, because the air holds a lot more moisture when it's hot. So the air cools off the relative humidity may become very high. Opening the windows would save energy on the AC, but it would immediately raise the humidity in the basement and cause the dehumidifier to run, consuming the same power saved by the AC. Only when the outside air is both cool and dry, I would open the windows. Having this Honeywell system lets me make this kind of decisions that I couldn't otherwise make. It minimizes the use of the dehumidifier in the basement and keeps the house more comfortable in the summer. In the winter, the air is dry indoor and outdoor, I don't really need an outdoor sensor. It's better to keep the extra sensor inside so that the battery won't die.
Digital camera Review: As a thermometer yes, but a hygrometer not
Summary: 2 Stars
I have purchased this due to the high reviews. It however turned out to be a disappointment. First of, I did followed the instructions to put batteries in remote unit first, reset it, then put batteries in the main unit. Every time the main unit gets reset, it seems to start from 80F temperature & 20% in humidify, and very slowly adjust from there. After numerous resets, I was still unable to get the main unit to display same info shown in the remote unit, even when placing them side by side. The main unit seems to always be 4-8% off in humidity compared to the remote unit. As for temperature, the main unit also varies from the remote unit. It can differentiate from 2.6 F to as accurate as 0.1 F, compared to data shown in remote unit. The remote seems more accurate then the main unit. The main unit and the remote unit have buttons (requires paper clip to reach) to adjust the display from Fahrenheit to Celsius & vice versa. I however, was unable to get the remote to display in Fahrenheit. It was stuck displaying in Celsius.
Other than these negatives, the unit itself is pretty nice. It has a big display; the digital numbers are about 1 inch in height in the main unit. The remote unit also has a digital display, although it's much smaller than the main unit. I guess if you're looking for a unit to just display the temperature, this may not be a bad device. However, as a hygrometer, this definitely is not the unit to be using for accuracy. I will be returning this unit, since I am looking for a hygrometer...
Digital camera Review: Awesome Product
Summary: 5 Stars
This product met my expectations in terms of accuracy and quality. I like the large digital display on the base unit, simple buttons and it is very easy to setup with the remote unit. I compared the temperature readings to my Chaney hygrometer and this one showed a higher temperature by 2-3 degrees F. The humidity level was exact. I was a bit concerned that my Chaney one was inaccurate but expected a small degree of variation. I am so happy that I can find out the outdoor temperature now with this compact remote unit. Just remember not to put the remote unit where it will be exposed to the sun, rain, etc.