VIVOSUN Digital Hygrometer with Indoor/Outdoor Thermometer and Humidity Monitor

Capn Billy: Used this to replace an older system that was not working well and kept going out of service.
This one less than one third the price works great comes with base unit that fits in the palm of your hand and 3 remote sensors.
Took only a little while to install the included batteries and to set up and everything works great.
Definitely recommend!

United States on Dec 05, 2023

Amazon Customer: I was looking for a clean looking digital thermometer to monitor readings in different areas of our home and this was perfect! The display is very well laid out with the items you want but no gimmicky extras (I didn't need another clock or calendar). The remote sensors work great recording the temp and humidity and the upper display cycles through them at a perfect pace while the lower display always shows the reading from the main unit. I placed my remote sensors in my garage, crawlspace and outdoors and the unit picked the signals up immediately and reception so far has been flawless. Temp and Humidity readings seem to be very accurate. My wife even likes this device and she's normally not a big fan of stuff like this. This has met my needs perfectly and I'm extremely happy with this product.

Canada on Dec 05, 2023

Daniel Stansfield: Easy to use and setup. Has indoor and outdoor readings. I use mine in my grow tent to monitor the temp and humidity inside the tent. Well worth the money

United States on Nov 22, 2023

Luinsan: UPDATE:
After using this for a few months we noticed the outdoor indicator was running through the batteries pretty quick, or so we thought. I investigated and found that when the weather became very cold overnight the outside unit would switch channels for some reason causing the inside unit not to display the temp. Be sure to re-sync the unit trying a different channel before replacing batteries as it just may be a channel loss. Save yourself some money and frustrations.
That being said I still love this unit.
Pros:
Easy to set up
Large readable displays
Works in all weather
Has a back light button for a quick
night reading (stays on only a few seconds)
Cons:
Humidity reading almost
as big as temp reading
Wish it came in black

If you're just looking for a good indoor outdoor temp display for your home this is a great investment. I'm a senior and set up was very easy has been working for over 6 months without any lag in several different types of weather. Outdoor sensor can be placed on the house or hung further away from more accurate reading. Worth the investment.

United States on Nov 02, 2022

jayne: Product worked well for about a year. It's not reading the outside temperature. I removed batteries from both parts for 2 hours and then put new batteries in. Indoor reading is fine. Outside reading is not correct. I removed batteries from sensor and thermostat still kept reading an outside temperature. I am wondering if it is picking up a neighbor's sensor???? When I switch channels on both devices, the other channels are blank. The sensor flashes so batteries are working. What's wrong?

United States on Oct 08, 2022

Allan R: After getting through the useless instructions, and finding answers elsewhere (Amazon Q&A), once it's all set up, this is a pretty decent device. I've only had it a few days, but it has the main functions I am after, in/out temp and humidity. The numbers are very large and easy to see on the display, and the entire display unit is touchscreen (was that somewhere in the description?) The backlight is easy to find, even in the dark, being in the lower left corner just tap there and it'll light up. Numbers seem to be fairly accurate, at least compared to other sensors I have. I'm pleased with the overall functionality of the unit, once getting past the horrible instructions.

If you want to pair/sync all of the sensors, there is a channel selector inside each of the remote sensors. Nowhere in the instructions does it mention these switches. There's also a "TX" button, which I'm still not sure what it does, other than seem to unpair the sensors. Another non-mentioned function is the ability to have a continuous scroll through the 3 sensors, or just keep it on one channel. If you tap the channel button, it'll scroll through 1, 2, and 3, but when it goes back to one, a little...

United States on Jun 18, 2021

mell: superb range works at a farther range than expected super esy to set up and get running easy to read overall far better quality than expected

Canada on Mar 31, 2021

Lancaster: Addendum to initial positive review: The original batteries in the remote unit failed after about one month which, although surprising, wasn't a big deal. However two subsequent battery replacements at about two week intervals proved that the remote unit was defective. In each case the batteries were tested on removal and installation. The symptom of battery failure was absence of readings on the display unit. Thinking that the battery failure might be due to rain getting into the remote, on the last battery replacement, I installed the remote outside, but underneath the deck, where it couldn't get wet. No improvement.
I emailed the company, telling them what had transpired and asked for a replacement remote. They replied saying it "must have something to do with the environment that the remote is installed in". I replied asking if the remote was not supposed to be used outside and again asking for a replacement. No reply!
So without a working remote (suspect a design or manufacturing flaw), the nice little display unit is also useless, because I already know what the inside temp and humidity are.
So can't recommend buying this device.

Canada on Aug 28, 2020

MR. Burns: I am buying two more sensors. This is so handy instead of having to walk out to check the greenhouse temp all day. I can now see where it is at at all times. Very handy. It's 50 feet away from the house and it works perfectly. There is three walls between the sensor and receiver. I'd recommend to anyone concern about the temperature or humidity of there grow areas.

Canada on Jun 10, 2020

kyleadam: Happy with this device, seems to be accurate within a degree. I have three thermometers in my grow tent now and all three of them show a different temperature varying no more than a degree. I have to assume the analog is the most accurate, however this device is great for monitoring the temperature and humidity of my grow space without having to open the tent. Might get another to replace the aging sensor i have outside

Canada on May 01, 2020