Compact but easy to read, very clear display. Very easy to set up, you just have to pull out the insulator tab by the battery. Seems to be accurate for both temperature and %RH. Having the min/max memory function and outdoor sensor are very useful for use in a greenhouse (which is where mine is). Haven't yet had temperatures to trigger the alarm function.
This is a well designed device and comes with plenty of options for mounting the unit and the remote sensor. I have compared it with other thermometers and the temperature seems very accurate, but I have no means of testing the humidity readings. Overall I am very pleased with it.
About the size of a pack of playing cards, which is ideal. Thermometer is slightly slow to read, but the hygrometer is fairly quick which is what I wanted it for.
Great. Fast delivery
Accurate as far as I can tell and at a sensible price.