Strap on the ArmArmour 2 Wrist Thermometer to prepare for any temperature. This wrist thermometer also has a durable tactical strap that fits both adults and children. The big and easy-to-read thermometer reads to -20º Fahrenheit or -30º Celsius. Hardware is made from brushed stainless steel for a sleek look. One of the necessary accessories for activities like hiking, camping, backpacking, fishing, hunting, and so many more!