Indoor Outdoor Thermometer Wireless, 4.5 Inch Display Digital Hygrometer Thermometer Temperature Humidity Monitor with 330ft Range Sensor and Adjustable Backlight

The first photo is in the house with the 3 sensors and the display unit all together. As you can see from the 1st pic, the numbers don’t align perfectly but close enough for home use. The 2nd pic is my $500 A/C thermostat ( I defer to its accuracy) taken at the same time as the first pic. The 3rd pic is with sensor 1 and 2 outside and 3 in another room of the house. The only real difference I am seeing is the humidity display. This can be impacted by airflow and may account for the difference. The indoor display is compact, easy to see and looks good either sitting on the mantle or hanging on the wall. Functionality is exactly what I was looking for. Very easy to set up and use. Just have posts of AAA and AA batteries on hand. Time will tell regarding reliability but I would initially rate this product a great value.

This relatively inexpensive multi-station thermometer / hygrometer works very well. It was easy to set up and appears to be giving accurate results. I have the sensors scattered throughout my house and garage. The base station reads them all. It comes with a USB power supply cord for base station but it also has AA battery backup option. Each of the sensors requires 2 AAA batteries. It’s a lot of batteries but I suspect power consumption is low so they should last awhile.

1) WORKS! The main unit connected very easily to the sensors, and stays connected, even at a distance. The remote sensors, as well as the indoor sensors in the base unit, are accurate enough for household and outdoor/outbuilding use.For users that have been critical of accuracy ... outside of expensive lab equipment, if you set up ten brands of temp/humidity sensors, in the under $150 range, in the same locations, you will get ten different readings.This incudes the well-known brands. This brand is at least as accurate as the others in it's price range, and is very good for everyday, non-scientific use.I've had one sensor in a rained-on location, and one sensor adjacent to a dark stone surface that the sun heats to high temps. They are still working well. The price is very reasonable for all that you get.2) SERVICE! The customer service is GREAT! My system was working fine for a while but, although the readings were fine, I eventually had a minor issue where I couldn't adjust the base station backlight to the dim setting while on USB power. I contacted the company and they made it right in a big hurry.

Everything works great, super simple to set up. Just put batteries and everything and turn it on and you're ready to go. All three sensors read within .2 degrees of each other which is amazing considering the low cost of this item. The temperature readings seem pretty accurate compared to a few other items I have that read temperatures such as my Nest thermostat and my temperature gun. The indoor temperature is also very accurate compared to my thermostat. The humidity readings seem accurate compared to the weather app on my phone and my Nest thermostat in the house. Since I use my garage for food storage I have one of the sensors out there and it has no problem with signal with the main unit which is about 30 ft away through a steel door and a interior wall. One of the sensors is in my backyard and the other is on my front porch and they also have no problem with signal connection. The only reason for four stars instead of five is the off-axis viewing angle of the display is not good. I have it on a shelf and if I'm sitting on my couch which is about 2 ft lower than the shelf which is about 6 ft away it's almost impossible to read the display as it's very washed out at that angle. But the display is bright on its brightest setting and still readable on the lower setting. The fact that it plugs in to any USB power source is very convenient also. The display is easily readable from 10 to 15 ft away as long as you're not at too much of an angle. Overall I'm pretty happy with this for the price I paid. It's just a simple temperature/humidity sensor which is all I really wanted. The little arrows showing the trims are there, but I don't use them or even pay attention to them so I really can't comment on those. If you're looking for something simple like this that just works and is priced very well, I would recommend it to anyone.

The unit was easy to set up, just put in the batteries The sensors are slow moving (as it were) so expect a while before they correctly show the temperature or adjust to rapid temperature changes such as thunderstorms (outside hopefully). The unit has 3 external sensors and a built in sensor in the base unit so you can monitor 4 zones. The furthest range I cannot verify but I can receive data from the outside of the house to the base unit at the far back of the house (about 35 ft) a previous device kept losing the outside connection which is why I bought this replacement. The backlight and alarms (it beeps and flashes) seem to be the only things you need the external USB power for; so you can live without it, but there is no power block supplied just a cable (these block things are pretty cheap). The display is quite large and easy to read and it can be wall mounted or stand alone. The 4 zones are fixed so although you can replace a broken external sensor and set the new one to the correct zone (1,2, or 3) well 4 zones is all you get. My previous device allowed 8 zones but only displayed 4 at a time. Not a big deal for most. Min and Max temps are stored for 24 hours and you can set alarms for low/high temp and humidity. There is no means to calibrate the sensors. Overall for the price no complaints. You will need AA (sensors) and AAA (base unit) batteries. Oh and you can have C or F