SmartStock's digestive track bolus is designed specifically for monitoring the health of the nation's livestock. The core body temperature is monitored and then on a regular basis the data along with a unique animal ID is transmitted to a Collective database. The bolus is an active RFID transmitter that will transmit an RF based signal up to about 300 feet to an intergrated database system. The 300 foot transmission range gives a total diamter of up to 600 feet. Available in 5 minute, 10 minute, 20 minute, 30 minute, and 60 minute intervals. Custom intervals also available upon request.