3-Pack Room Thermometer Indoor Hygrometer for Home, Digital Sensor Mini Humidity Meter, Temperature Humidity Gauge Monitor for Bedroom, Pet, Plant - Battery Included

After looking at the other reviews I was a little put off by some, but went ahead anyway. My three units were simple to set up, calibrate and give very similar readings. Humidity in the room initially was stable at 47% or 48% across all three units. After turning on a humidifier they tracked each other up to 59%, never disagreeing by more than 1% at any time. I don't know how the number would compare with an expensive piece of kit, but I was after a clue as to how wet or dry the air was, and these seem to track changes in a useful way. Temperature across the three units never differ by more than 0.9C, and each tracked the change when the central heating came on, staying in close agreement. So, for very cheap units, they seem quite good so far. And for those complaining that they can't read them in the dark there is a simple solution - turn on a light!

Fast delivery , found one of the three didn't give same readings as the other two , but at that price wasn't worth returning.

These work well. I've had two of them placed next to a normal liquid thermometer in different locations and the measured temperatures are the same, give or take one degree. Useful size and they stand on flat services so also conveniently avoiding wall fittings.

They work well but the screen could be a bit bigger but easy to read

I’ve bought these in the past and never had any problems. Bought another set and 2/3 don’t work. Bit disappointed as I do love these.

It didn't inspire confidence that even after they had 'autocalibrated' (? however that works), the three of them showed different temperatures and humidities, by up to 4 degrees C. After a while they settled to a smaller discrepancy of 1 or 2 degrees with each other, but also a similar remaining discrepancy with conventional analogue thermometers. Very slow to react to changes, I have two sitting on the shelf in front of me which read 21 and 24C . The real temp is 23 in my living room, but I only brought one in from the kitchen ten minutes ago and it's still showing 21. Basically they are neither accurate nor reliable. The displays are also hard to read unless you have a strong light shining on them and even then it is the humidity which dominates the display, not so interesting to be honest.

These are so useful to monitor humidity levels in our home. We had mold issues previously so this comes in very useful for us to see when humidity levels get too high - in which case we either open the windows or turn on our dehumidifier until humidity goes down to a better level.This is nice and small and the design is nice and simple without looking tacky. Great to have a pack of 3 to keep one in different rooms!

One different ??