The FeverTags Beef Cattle Ear Tag
light weight (1 oz), easy to use, cattle temperature detecting device. Installed like most visual ID tags, the FeverTag is made from durable weather resistant poly-carb plastic. The heart of the device is a computer microprocessor that monitors core body temperature. Once a fever is detected an ultra-bright light will turn on signaling you that the animal has breached temperature and warrants further attention.

