Temperature compensated differential pressure sensor in instrument. Additional 2 probe sockets for measuring pressure and temperature.
Temperature compensated differential pressure sensor in instrument. Additional 2 probe sockets for measuring pressure and temperature.
Discontinued!
This product has been discontinued and is no longer available. There are no replacement options.
We can help you find what you need:
The highly accurate differential pressure meter, Testo 521, with an internal pressure sensor from 0 to 100 hPa is ideal for Pitot tube measurements in the range 5 to 100 m/s. Testo 521 is available in 2 accuracy classes. Testo 521-1 with an internal pressure sensor with Class 0.2, Testo 521-2 with an internal pressure sensor with Class 0.1.
In the case of velocity speeds in the range from 1 to 12 m/s, you can carry out accurate measurements using the 100 Pa probe which can be attached externally.
The measurement data can be saved according to location and analysed on your PC or printed on site on your Testo printer.
| Memory | 25,000 |
| Storage temperature | -4 to +158 °F |
| Operating temperature | +32 to +122 °F |
| Battery type | 9 V, IEC 6LR61 |
| Dimensions | 8.62 x 2.68 x 1.97 in |
| Housing material | ABS |
NTC |
|
|---|---|
| Measuring range | -40 to +302 °F |
| Accuracy | ±0,36 °F (+14 to +122 °F) ±0,72 °F (remaining range) |
| Resolution | 0.1 °C |
Piezoresistive pressure sensor |
|
| Measuring range | 0 to 40.14 inH2O |
| Accuracy | ±0.1 % of f.v. |
| Resolution | 0.001 inH2O |
| Overload | 120 inH2O |
Piezoresistive pressure sensor 2 |
|
| Measuring range | 0 to 802 inH2O |
| Accuracy | ±0.1 % of f.v. |
| Resolution | 0.1 inH20 (0638 1347) 0.001 inH2O (0638 1447) 0.01 inH2O (0638 1547) 0.1 inH2O (0638 1847) |
Type K |
|
| Measuring range | -328 to +2498 °F |
| Accuracy | ±0,72 °F (-148 to +392 °F) ±1.8 °F (remaining range) |
| Resolution | 0,1 °C |
Click on a category to view a selection of compatible accessories with the Testo 521-2 Differential Manometer, 0-100 hPa, 0.1% Acc'y.
| Memory | 25,000 |
| Storage temperature | -4 to +158 °F |
| Operating temperature | +32 to +122 °F |
| Battery type | 9 V, IEC 6LR61 |
| Dimensions | 8.62 x 2.68 x 1.97 in |
| Housing material | ABS |
NTC |
|
|---|---|
| Measuring range | -40 to +302 °F |
| Accuracy | ±0,36 °F (+14 to +122 °F) ±0,72 °F (remaining range) |
| Resolution | 0.1 °C |
Piezoresistive pressure sensor |
|
| Measuring range | 0 to 40.14 inH2O |
| Accuracy | ±0.1 % of f.v. |
| Resolution | 0.001 inH2O |
| Overload | 120 inH2O |
Piezoresistive pressure sensor 2 |
|
| Measuring range | 0 to 802 inH2O |
| Accuracy | ±0.1 % of f.v. |
| Resolution | 0.1 inH20 (0638 1347) 0.001 inH2O (0638 1447) 0.01 inH2O (0638 1547) 0.1 inH2O (0638 1847) |
Type K |
|
| Measuring range | -328 to +2498 °F |
| Accuracy | ±0,72 °F (-148 to +392 °F) ±1.8 °F (remaining range) |
| Resolution | 0,1 °C |
Click on a category to view a selection of compatible accessories with the Testo 521-2 Differential Manometer, 0-100 hPa, 0.1% Acc'y.
