Geevon Indoor Outdoor Thermometer Wireless with 3 Remote Sensors, Digital Hygrometer Indoor Thermometer, Temperature Humidity Monitor Gauge with 200FT/60M Range (White)

Summary:I have installed this base and two remote sensors. The temperatures displayed appear to be accurate within the specified limits compared with other thermometers. I can not verify the humidity readings as I do not have anything reliable to compare to.Ordinary setup (without the alarms) was very easy.It came in a box that was easy to open and not in a blister pack that requires the user undue hardship.I highly recommend this unit.Detailed stuff:This unit works very well. I did not need three remote sensors, but the reviews were almost all good and the price was reasonable. Compare that to some other perhaps better known brands (at a higher cost), those had too many negative comments. So I bought this unit.Ordinary setup is very easy. Setting alarms appears to be a bit difficult and the instructions are a bit confusing for that. I don't want alarms, so hopefully they are all turned off.One note on the instructions, the detailed instructions say, "To change the channel option on the outdoor sensor open the battery compartment cover, on the upper left side is a button." No there isn't. The channel selection is made by setting the three position switch at the top of the battery compartment. May be a no brainer for many, but I thought I'd mention it.Also the instructions say not to place the unit within three feet of electronic devices. My indoor unit is right beside my computer monitor and less than three feet from the computer. I'm not experiencing any trouble. Your results may differ.I set up the outdoor sensors (I set up two) under a bay window on the north side of the house so they are always in the shade and protected from other weather elements.Early this morning, before the sun could have an influence on the outside temperature, both outdoor sensors were reporting the same exact temperature. Comparing those readings with a personal weather station about a block away, all the readings, including humidity level were the same.At about noon, the personal weather station about a block away was reporting a temperature ten degrees higher than what my outside sensors were reporting. I often wondered if that personal weather station was inappropriately installed, having compared that to the remote unit I am replacing (a Radio Shack unit I have used for about 15 years). Seems likely.

I needed a thermometer that would give me my internal house temp, plus at least 2 other external temps. This one has 3 external temps. I had a need to monitor the outside air and humidity, an attic space, and my garage, just to be sure that stored items were not subject to over heating. This gives me an easy to read and use LCD display that shows all 4 readings on one 4"x5" (approx) box, plus shows the min/max temps for each location over the last 24 hours. Very pleased so far.

we have a large older home with thermostats in each for individual temperature control. i needed to be able to keep tabs on the rooms with heating costs having gone up so much this year and thought i would do this to make monitoring easier.first off be sure to have some AA and AAA batteries on hand. once those are in i placed the units throughout the house. it's nice that each transmitter has a small display with all the information on the larger unit replicated on those. my biggest issue was identifying which was which on the larger display. i ended up using a sharpie on it and marked where each was placed. otherwise trying to recall which was where was a pain.our home is two story with old plaster type walls. all the remote transmitters work fine throughout both floors and all walls. the greatest distance for one being approximately 80' from the first floor to the rear of the second floor.in daylight conditions it is easy to read everything. at night however with no backlight obviously you can't see anything. the accuracy compared to other digital thermometers i already had? they all matched up to within a tenth of a degree. setup is simply just insert batteries and you are good to go.my only dings on this product are being able to identify which transmitter on the large display goes to what, where and not being able to see the readings at night. otherwise this is imho a good value and i would purchase again if needed.

Awesome little device with great range! I use the remote sensors to monitor my greenhouse, well house and outdoor ambient air temps. It transmits on 433.920mHz so with a free decoding tool and an SDR dongle you can also monitor the remote sensors via your pc and antenna. It survived -35F temps and Oklahoma winter exposed to the elements with zero issues. Accurate to within +/-2F as best I can tell, not enough to be critical for most applications. 10/10 will buy again as need arises.

I am using this product to monitor temperatures in the refrigerator and freezer sections of our main fridge, as well as a smaller fridge in the basement. For this application, it works great. No issues with the wireless connection to the remote sensors, even the one down in the basement fridge.The main display is easy to read at a glance. And while the individual remote sensors have their own displays, the digits are really small, and hard to read at a glance. Not a big deal to me though.As for accuracy, when I first unpacked the product, I set up the sensors side by side and let them adjust to the room's temperature for at least an hour, then compared the readings. Two of them were within 1 degree of each other, which I though was good, but the third sensor was off by a bit more than that. I wasn't super pleased about it, but the readings were close enough where I did not feel it was worth returning the product. The humidity readings were pretty close to one another as well.Considering the reasonable price and decent performance, I am pleased with this purchase and see no reason not to give the product a 5-star rating.

Love it, I can see the temperature out side, upstairs in the kids play area, main living room and baby's bedroom at a glance and the readings are accurate. The batteries lasted about 18 months, I'm okay with that.