DIGITAL HUMIDITY GAUGE--It is portable and won't take up too much space. TEMPERATURE METER--Warm Tip: Dear buyer, Due to lighting effect,monitor's brightness,manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. sincerely hope that you can understand! Thank you!. TEMPERATURE GAUGE--Easy to mount on wall. DIGITAL HUMIDITY METER--Acrylic round embedded electronic digital and hygrometer,It is portable and wont take up too much space. DIGITAL TEMPERATURE METER--Suitable for home, office, , and other places.