Photo shows medium pneumotach with optional R3850 heater control.

Pneumotach Amplifier has 2 analog outputs, one for flow and one for pressure. Dual Amplifier provides only analog flow output for each pneumotach. Consider Pneumotach Calibration which presets range control and provides chart of volts out vs. flow and pressure (volts vs. flow only on dual amp). For dual amp must buy 2 calibrations.

Heater Control must be purchased separately.

"A" - Sizes
Dead space: 1.75 cc
Weight: 37 gram
Length: 3.45cm
Ports: 0.312" OD x 0.250 ID both ends
Fleisch equivalent: # 00

"B" - Sizes
Dead space: 2.4 cc
Weight: 46 gram
Length: 5.39 cm
Ports: Large end 22mm OD x 15mm ID; small end 15mm OD x 0.250" ID
Fleisch equivalent: # 00

"C" - Sizes
Dead space: 1.9 cc
Weight: 43 gram
Length: 4.83 cm
Ports: 15mm OD x 0.250 ID both ends
Fleisch equivalent: # 00

Last update 28 Mar 2021