3.9" LCD Indoor/Outdoor Digital Thermometer/Humidity Meter w/ Alarm Clock (1 x AAA)

Pros: - Big and easy to read LCD display
- Has one internal senor and a separate external one
- All the three sensors have good precision. I have tested them against a professional measurement tool. The deviation for temperature is +/- 0.5 degrees C. The humidity has a +/- 2% tolerance (in moderate conditions 18-28 degree interval, 25-65 % humidity)

Cons: - My item has arrived with a slight defect. The clock wasn't showing all the characters so i had to took it apart and re-fix the ribbon cable.

Other: - The price is fair, but it could be a bit cheaper. It's useful and accurate.

Pros: +Large display that clearly shows indoor and outdoor temperatures at all times +Relative humidity (hygrometer) that seems close enough to the real value to be useful +Clock for those that need yet another clock (I don't use/need this feature)

Cons: -Outdoor thermometer cable length is not long enough for most purposes

Other: Buy this device if you want to have an idea of temperature differences between two close areas of your house.

Pros: - Nice bright screen - Easy to set up, no fuss - Large and bold numbers, very easy to read - Good size - Good price

Cons: I bought two of them. Now they are all top of each other above another indoor/outdoor thermometer from a different source. My other device shows 23.1 C inside, these two show 23.9 C for inside and 23.3 C for outside temperature. The sensor for the outside temperature is hanging right next to the device. I also have my boiler thermostat in the same room which shows 23.0 (only has 0.5 precision). So it looks that for both of these thermometers the inside temperature is about 0.5 higher. Also the humidity is shown as 51% and 48% whereas on my existing device it is 57%.

Other: I am happy with the products, it delivers what I expected and paid for.

Pros: Big clear display. Nice design. Ability to view inner/outer temperature and humidity (plus bonus clock).

Cons: Accuracy of the outdoor sensor is not good. It could show you more than 20 degrees higher if exposed on direct sun light. Humidity sensor accuracy is not enough - it changes shown values depending on air content (ration between O2 and CO2).

Other: Generally good product, although accuracy is not the best. If you need more precise sensors - find another one.