Lafayette Intrument and Actimetrics offer a comprehensive selection of research‑grade activity and exercise wheels designed for precise monitoring of voluntary running behavior, forced exercise, circadian rhythms, and general activity patterns in rodents. The Lafayette Instrument wheels include durable solid‑surface models and sensor‑integrated revolution‑tracking wheels that pair seamlessly with Lafayette’s modular activity monitoring systems, delivering accurate measurements of wheel turns, speed, duration, and daily activity cycles. Actimetrics complements this lineup with its ClockLab‑compatible running wheels, engineered for exceptionally smooth operation and high‑resolution activity detection in home cages within long‑term circadian studies. Their wheels integrate directly with Actimetrics’ wireless data acquisition hardware and software, such as ClockLab, enabling continuous, automated recording of activity in mice or rats. Together, Lafayette Instrument and Actimetrics provide reliable, data‑rich tools for studying exercise behavior, metabolism, motivation, and circadian biology.