Isler and his research group, the Robotic Sensor Networks Lab, focus on algorithmic and systems aspects of Robotic Sensor Networks (RSNs). Broadly speaking, an RSN is a network of devices equipped with sensing, communication and actuation capabilities. Designing algorithms for robotic sensor networks requires tackling challenging problems that lie at the intersection of robotics, perception and communication. The group works on a broad set of RSN related problems ranging from theoretical problems such as pursuit evasion and sensor placement to developing systems in which robots act as robotic routers or data mules. In recent years, they have been focusing on applications in environmental monitoring and agricultural robotics.