This bimetal Fahrenheit degree button thermometer is very durable with ABS case and transparent top. It can read temperature from 0 to 120 degree. It has groove on the edge for lanyard. You can also stick it with water glue on calendar, book, camping kits, etc.
Material: ABS plastic, bimetal thermometer spring
Test temperature range from 0 to 120 degree. It may have +/- 5 degree error.
Size: 20mm diameter
10 x thermometers