Home > Consumer Reviews > Honeywell TM005X Wireless Indoor/Outdoor Thermo-Hygrometer

I tested the main unit's accuracy using the Boveda One-Step Calibration and am pleased to say that it's spot-on accurate. The only drawback is the remote's temp and humidity reading differs slightly from the main unit. A difference of as much as +/-2.

It worked for about 3 months, then the remote humidity reading went haywire??????? Then the main unit stopped working (yes I put new batteries in). At $20, it seems silly to bother with returning it...of course that might be Honeywell's master plan.

This item has a very large display for easy reading. Having the remote sensor that can be placed in different locations is very convenient. Setup was easy. I am glad I bought this product.

I have purchases 60 to 100 of these Honeywell gauges in the past 6 months. The gauges are priced right but the accuracy is up to 6 percent off. Plus - minus 3 percent. Does not sound like much but if you have a customer that wants one master and two slaves and they read 6% different side by side it looks like the gauges are junk. As I said before the gauges are the best that I found.

This item has worked well for me so far. While the base unit and remote sensor did initially disagree when I first turned them on (for both the temp and humidity), they both equilibrated to within a few tenths of a degree and 1-2% humidity difference (I think that's plenty of precision for home use) when I came back the next morning. Even a degree of temperature and +/- 2-3% humidity difference would be precise enough for most people's home use. Now, of course, I have no independent, callibrated thermometer or hygrometer to assess accuracy, but that's another matter. Overall I'm very satisfied.