| Model |
Description |
| C300 |
Digital Instrument for Measuring Barometric Air Pressure 750 - 1100 mbar (2120.00) |
| C310 |
Digital Instrument for Measuring Differential Pressure -0.073 to 0.073 PSI (2120.10) |
| C320 |
Digital Instrument for Measuring Differential Pressure 0 to 1.45 PSI hPa (2120.20) |
| C330 |
C330 Digital Instrument for MEasuring Differential Pressure (0 to 29 PSI) (2120.30) |
| C340 |
C340 Digital Instrument for Measuring Differential Pressure 0 to 72.5 PSI (2120.40) |
