This 3.5 Inch Suction Cup Dial Thermometer 5321N attaches easily to windows and other non-porous surfaces. Keep track of the outdoor temperatures from the comfort of your home with the easy-to-read, bold black numbers. Marked with blue and red coloring to show cold or heat; measures temperatures from -40 degrees F to 120 degrees F.

• Weather Resistant Materials
• Easy-to-use Suction Cup
• Red and Blue Color Indicators