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Specially designed for sprinkler systems. Suitable for air and water media.
Specially designed for sprinkler systems. Suitable for air and water media.
The small diameter wired vane probe is to be used with the compatible Testo 440 multifunction measuring instrument to determine air velocity and volume flow. When connected to the 440 Air Velocity and IAQ meter (Sold Separately), clearly structured measurement menus for volume flow enable the measuring instrument to be operated intuitively. The volume flow is precisely calculated thanks to a convenient input feature of the size and geometry of the duct cross-section. Timed and multi-point mean calculation, average volume flow, current reading and min./max. values are displayed in the measuring instrument. Pressing the button on the vane probe is a particularly useful feature to operate the measuring instrument. For example, to store individual readings for multi-point mean calculation or to start and stop measurement series for mean calculation over time, just tap the button to begin and end the measurement.
| Range | 0/300 psi |
| Type | Water |
| Dial | 3.5" (90mm), white aluminum with back and red markings |
| Case | Black Plastic |
| Lens | Polycarbonate, threaded |
| Socket | Brass |
| Connection | 1/4" NPT standard, bottom |
| Bourdon Tube | Phosphor bronze |
| Movement | Brass |
| Pointer | Aluminum, black |
| Welding | Silver Alloy |
| Working Pressure | Maximum 75% of full scale value |
| Ambient/Process Temperature | -40 to 150°F (-40 to 65°C) |
| Accuracy | ±3-2-3% ASME Grade B |
| Enclosure Rating | IP52 |
| Range | 0/300 psi |
| Type | Water |
| Dial | 3.5" (90mm), white aluminum with back and red markings |
| Case | Black Plastic |
| Lens | Polycarbonate, threaded |
| Socket | Brass |
| Connection | 1/4" NPT standard, bottom |
| Bourdon Tube | Phosphor bronze |
| Movement | Brass |
| Pointer | Aluminum, black |
| Welding | Silver Alloy |
| Working Pressure | Maximum 75% of full scale value |
| Ambient/Process Temperature | -40 to 150°F (-40 to 65°C) |
| Accuracy | ±3-2-3% ASME Grade B |
| Enclosure Rating | IP52 |
