U.S. Department of Agriculture: Animal and Plant Health Inspection Service



Date of this Version

December 2007


Published by United States Department of Agriculture Animal and Plant Health Inspection Service APHIS 11–55–010.


Can trap monitors save Wildlife Services (WS) specialists time and money by increasing the efficiency of trap checks? To find out, WS scientists and field specialists evaluated the use of remote trap monitors. In 2006, WS personnel evaluated the effectiveness of two remote monitoring devices to alert wildlife specialists when an animal is captured in a trap. The devices, which can be used with any type of trap, consist of small radio transmitters that emit unique pulse rates when an animal is captured. WS personnel tested the device on a variety of wildlife species using several different types of traps and bait stations.

This tech note summarizes the results of the evaluation and provides tips and recommendations for using remote trap monitors.