A 6 mm button, 50 pound Multi-Channel Strain Gage, indirect (under the pin) Cavity Pressure Sensor.
Available lengths include 0.2m, 0.4m, 0.6m, 0.8m, 1.2m, 1.6m, and 2.0m.
Custom lengths are available upon request. Contact an RJG sales person for a quote.