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

Sat the 3 remote sensors and the base unit within a few inches of each other. Expected to see the same temp and humidity readings from all 4 sensors, but readings varied. These Geevon units cannot be calibrated, so for this reason, I'm returning them and will purchase the name brand set which lets you calibrate each sensor individually.

I have only had this for about a week or so but so far it is working great! I really like it. The display is crystal clear and the remote units seem to work well. I have one outdoors, one in my attic and one in my basement. The one in the attic is about 75 feet away from the main unit, which is 3 floors below.

The first thing I did after installing my batteries (not included) was place these sensors side-by-side on my counter to test their accuracy. As you can see in the attached photo, despite being in the exact same environment, every single one gave a different reading. Don't waste your money on this brand—they are completely unreliable.

love the ease of tapping the top for backlight. I have double checked accuracy with a different thermometer, and its always within 1 or 2 degrees difference. I made myself a cheat tab, taped to the edge to easily remember which monitor is where. I would definately buy this again!

The Geevon Indoor Outdoor Thermometer with 3 remote sensors has exceeded expectations. Setup was straightforward, and the display is clear with a convenient backlight for low-light viewing. The sensors connect seamlessly and provide accurate readings from multiple locations, which is extremely useful for monitoring different areas of the home and outdoors. The 200ft transmission range works exactly as described, and the overall build quality feels solid and dependable. This unit delivers excellent value for the price—precise, reliable, and professional-grade performance.

This thermometer unit is fandadgumtastic, I have one main base unit which measures temperature and percentage of dryness in the air, then with it came three individual smaller temperature units tied with the base unit. They report to the base, I've got two inside the house and one other outside on the back porch in a cat community house. All units have different readings. I love this unit. If you want to know the differences in the temperatures in your spaces, you need this wonderful thermometer unit.

The accuracy is good and the precision is very good. The price is very low for instruments and so far the reliability is good. I have waited a month to review because time will be the final judge of your products value. To date, I am impressed by modern technology and capitalism. If your product continues to provide accurate data for years I will be a vocal advocate for it.

While it works great outside , it does not work in underground cellar with concrete walls or above ground in a metal storage unit, which is the entire reason I purchased it. It works via wi-fi, so it should have been a no-brainer, but for me, it wasn't. For those of us who may be a little tech-challenged at times, this information should be added to the description, etc.

Great for monitoring temperatures and humidity in multiple places at an outstanding price. My sensors have been in 130 and 20 degree environments and have functioned great battery life appears to be at least one year based on my use. The screen has a backlit function that works well and seems to conserve batteries. The display is ok - monochrome with ok clarity but nothing extraordinary. For the price, the readout is good.

Moisture readings aren't perfect, but good enough to do the job. I've had multiple water leaks in my crawl space and installed these sensors throughout the space after replacing a main hot water line. (The PEX-A was defective, so after the third leak I just replaced the entire line.) now I can monitor humidity levels in the crawl space without going down there. I don't think it's really accurate (but within 3-5%) which is close enough to let me know if there's a problem.