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

I like this temp monitor as I can see 4 temperatures at the same time. I put the display unit in front of a IP camera and then when I am away can always see the temperatures in my home and outside. I put a sensor in each of my refrigerators so when I am traveling I can make sure everything is OK. Sometimes during a lightening storm the breakers for one of the refrigerators would trip and when I got home discovered a big mess. With the temp probes in the refrigerators and the unit visible on the camera, if something goes wrong I know about it and can have someone go flip the breakers back on. The probes work great in the low temperatures of the refrigerators and outside up to 108F the other day in Texas. Probe 1 and 3 are in the fridges, and probe 2 is outside. Shows temp and humidity perfectly. Picture is off of my IP camera and display is very clear and easy to read no matter where I am in the world.

All I wanted was to see the temperature and humidity in different locations. With this unit, you get that info at the home base, and three separate locations. The instructions suggest using lithium batteries, so I purchased those to go with it. All batteries are AAA -- 3 in the base station, and 2 in each of the three separate locations, requiring a total of 9 batteries which are not included. Plugged them in, and I was good to go. You can do a lot more with these -- set high and low temperature warnings and so on if you want. The lighted screen works well. It comes on for just about ten seconds, then goes off. You can have it stay on all the time, but you have to plug the enclosed USB into a USB outlet. Well worth the nominal price.

All external sensors R/H read within a % or 2. Unfortunately, the base unit reads 10% below that. Temps across the board are accurate. Knowing this allows us to still make use of the inexpensive but useful tool.

I love having these in my camp trailer. I can see inside fridge, freezer, inside and outside of the camper all in one glance. Very accurate too!

Simple as all get out; it will tell you what temperature it is at its base station and includes three more remotes. I'd like it if there were more than three codes, but hey, it JUST WORKS for those three codes, and the remote units themselves have displays you could look at even if they don't send their temp back to a base unit. I haven't tried a "range test" or anything, but at 50' or so through walls etc. all is well.

Turn it on and it works. No skill or tech ability needed. Accuracy seem good with all 3 remote sensors. Maybe the console indoor humidity reading may be a little low but still close. Well, 5 or 10% humidity accuracy is expected and so pretty close to spec.

and I love the touch light on the top. the light is nice and bright too. I've had it installed for over a month with no problems.

I use them to monitor refrigerator and 2 freezers in basement. Worked prefect for about a month, then channel 1 is picked up the remote sensor for my outside temperature. Have done a few resets and within a few hours it goes back to picking up the outside temp sensor. The outside sensor was present prior to setting up this unit.