Dial Thermometer, -20 To 50 Degrees C, And 0 To 120 Degrees F, 1 Each

The United Scientific® Dial Thermometer, -20 To 50 Degrees C, And 0 To 120 Degrees F by United Scientific is a 38mm (1-1/2") molded plastic dial thermometer with dual scales reading -20° to 50°C and 0° to 120°F in 1° divisions. It mounts on any indoor or outdoor surface with a nail or two-sided tape (not included). Classrooms, greenhouses and storage areas use it for simple, battery-free ambient temperature readings.