Ask a good cattleman to tell you how much that calf in the pasture weighs and he’d be able to give you a pretty accurate eyeball guess. While that cowboy knowledge is truly a special gift and has suited the cattle production industry for generations, today’s demand for efficiency has created a need for a more accurate assessment.

Activity monitoring has followed somewhat the same path as the digital television. More companies have entered the marketplace as technology has evolved, which has increased the competition for technology development but also significantly reduced the price. Datamars entered the activity monitoring marketplace last year with the launch of the Tru-Test Active Tag system.