ZH-PL type critters running wheel system running wheel system is flexible and suitable for small animal research facilities, is rhythm, food, medicine or pharmacy animal studies circadian cycle valuable instrument. Compared with the treadmill, swimming pool training equipment, running round the system in small animal behavior research exercise physiology, pharmacology, neurophysiology, etc. There are more prominent advantages, has been recognized by experts and scholars, is the preferred laboratory exercise training equipment. Among them, the self-running wheel (Passive Running Wheel) is a spontaneous movement by the animals themselves to promote running wheel rotation. In this configuration, the information long-term animal cage activities, such as running wheel rotation direction, the number of revolutions, the cumulative total travel, etc., can use the magnetic switch and smart meter length recording, magnetic switches can also be obtained and data acquisition systems. Independent ran round the system works with the product type Independent wheel system is run by the animal's own campaign to drive the wheel operation unit, which consists of self-running wheel apparatus, data logging recorders and statistical analysis software consists of three parts. Independent wheel running rodent autonomous movement means, which consists of the wheel assembly, the cage body, and the rotation direction speed sensor. Cage is divided into: Cage base facilities inside the cage and removable tray to collect waste. Easy to clean the entire cage body. Running wheel system is a modular combination of design, may constitute a running wheel, drag the running wheel or wireless data transmission confined ran round three. In addition, running wheel removed, you can easily build a standard cages. Rats or mice can be used to run different size wheels.