Canada's Favorite Hydroponic Supply Store
The Grower's Edge Digital Thermometer & Hygrometer measures indoor/outdoor temperature in F or C as well as indoor humidity.
This unit stores min/max values of indoor/outdoor temperature and indoor humidity, and has a 12/24 hour mode switch. The large, easy to read display makes it strain free to read the values on the screen.
The indoor temperature measuring range is from -22F to 122F (-30C to 50C), while the outdoor temperature measuring range is form -58F to 158F (-50C to 70C).
Indoor humidity measuring range 20% to 99% RH.