US Patent 7928845 Tool tracking apparatus

A tool tracking apparatus constructed by a base monitoring station that has electronic circuitry, an LED display panel and an audible alarm; a power supply including a battery power backup for the base monitoring station; a perimeter loop wire electrically connected to the base monitoring system defining an extended area in which at least one tool is protected or can be located; at least one wireless security tag fixedly attached to the at least one tool for rounding a second audible alarm when the locate button on the base monitoring station is pushed or for triggering the first audible alarm when the at least one wireless security tag approaches the perimeter loop wire at a distance less than a preset distance.