Evolution of the G&J Electronics Inc. Barostat
The G&J Electronics Inc.  barostat was first developed in 1991 and was continually improved over the years.

The current models are the Distender Series II:
Distender II – human device, Distender IIR  – Rodent mini barostat
These instruments have simultaneous dual pressure, dual balloon capability,  lending to more complex distention protocols:

Distender II Dual Balloon Barostat System
Distender IIR Rodent Barostat













Click on the thumbnail to see the full image below to see earlier versions of the G&J Electronics barostat: