Height: 5 cm 
Width: 19 cm 
Depth: 9 cm 
Material: Metal, wood 
Date: c1980s 

Watch YouTube video
Dr. Richard Fraser, Director of the Maude Abbott Medical Museum, provides a brief description of the function and/or use of the equipment.

This transducer converts a force or a displacement into a voltage that can be recorded for later analysis.  It was used at McGill in an undergraduate physiology lab course exercise on intestinal smooth muscle run by Dr. Peter Weldon in the 1980s.  

Montgomery et al., 2016:  Autonomic modification of intestinal smooth muscle contractility. Adv. Physio. Educ. 40:104-109, 2016.