Feature:

High quality with low power consumption
Multi-function In and out temperature measuring
High stability & accuracy
Memorized MAX/MIN values of indoor/outdoor temperature
Display temperature and humidity simultaneously
°C/°F unit selectable
Temperature range: Indoor: -10~+50°C (-14~+122°F) Outdoor: -50~+90°C (-58~+194°F)
Humidity range: Indoor: 20%~999%RH
Battery: 1x 1.5 V AAA (not included)
Size: 8.1cm x 7cm x 2cm
Hygrometer: Indoor measurement ranges:10%-99% RH
LCD display
Size:7.7*7.2*2cm
Easy to install and simple to use