Precision food dispenser with dispensing wheel that accommodates 14mg pellets.

Precision food dispenser with dispensing wheel that accommodates 45mg pellets. Affixed to a modular panel.

This speaker module may be used with any 80004 Series Modular Test Chambers.

A standard rodent press bar on a modular panel.

This lever is similar in design and construction to the standard rat lever, but with a smaller paddle and an even lower response force.

A back lit key suitable for the study of pigeon operant behavior.