The Extech 406800 is a differential pressure manometer designed to measure gauge or differential pressure from 0 to 138.3 inH2O. It features an 11-unit selectable display, dual LCD screens, and connectivity options including RS-232 for PC data acquisition using optional software (407752). The device includes functions such as Data Hold, Min/Max recording, and backlighting to assist with readings in various lighting conditions.
| Function Range (inH2O) | ±138.3 inH2O |
|---|---|
| Resolution (inH2O) | 0.1 inH2O |
| Accuracy | ±0.3%FS |
| Response Time | 0.5 seconds typical |
| Maximum Pressure | 20 psi |
| Operating Temperature Range | 32 to 122 ºF (0 to 50 ºC) |
| Power Supply | 1 x 9V battery |
The device features 11 selectable units: inH2O, psi, bar, mbar, kPa, inHg, mmHg, oz/in2, ftH2O, cmH2O, and kg/cm2.
To disable Auto Power Off, hold down the HOLD button and turn the meter on; an 'n' will appear in the display.
Err.1 indicates that the pressure value is over the range.