- The Tenmars TM-4002 displays air (wind) speed in meters/second, feet/minute, kilometers/hr, knots, and miles/hr
- Displays maximum and minimum readings and holds any reading
- Manual Data Memory and read function (99 records)
- Dew point, Wet Bulb calculation
Air Flow (volume) Calculation:
| Unit | Range | Resolution | Accuracy |
| CMM | 0~9999 | 0.1 | - |
| CFM | 0~9999 | 0.1 | - |
Temperature Measurement:
| Unit | Range | Resolution | Accuracy |
| ℃ | -20~60 | 0.1 | ±1℃ |
| ℉ | -4~140 | 0.1 | ±1.8℉ |
Humidity:
| Unit | Range | Resolution | Accuracy |
| %RH | 20~80 | 0.1 | ±3.5%RH |
| %RH | <20, >80 | 0.1 | ±5%RH |
Keep the meter away from electromagnetic interference (EMI) which may cause erratic readings.
Please turn off the meter to avoid the sensor burned when you have finished testing the high wind speed (more than 20m/s) and remove the probe.
To extend the probe, hold the handle in one hand while pulling on the probe tip with the other hand. Do not hold the cable while extending the probe.
Remove the sensor protective cover, make sure the sensor window is fully exposed and the orientation is facing upstream.
To retract the probe, hold the handle in one hand while pushing on the probe tip with the other hand. If the probe antenna binding, please gently straightened probe, and then the rest of the extension of section pressure back and don’t pull the cable.






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