| Model | 8904 |
| Wind Speed Range | 0.4~30 m/s; 80~5900 ftm |
| Wind Speed Accuracy | ±(2% of reading+0.2 m/s) |
| Air Temperature Range | -10~50.0℃ |
| Air Temperature Resolution | 0.1℃, 0.1! |
| Air Temperature Accuracy | ±1℃ |
| Wind Speed Unit (m/s) | YES |
| Wind Speed Unit (ft/m) | YES |
| Wind Speed Unit (KM/H) | YES |
| Wind Speed Unit (MPH) | YES |
| Wind Speed Unit (knot) | YES |
| Temperature Response Time | 60 seconds (typical) |
| LCD Update | Every second |
| LCD Size | 40(L) * 34(W) mm |
| Operating Temperature | 0~50℃ |
| Operating RH% | Humidity ＜80% |
| Storage Temperature | -10~50℃ |
| Storage RH% | Humidity ＜90% |
| PC Link | YES |
| 8 Pints Velocity Average | YES |
| Battery Life | 100 Hours |
| Size | Meter: 183(L) * 76(W)* 45(H) mm Impeller: 70 mm |
| Weight | ~150g |
| Battery | 9V Battery *1 PC |
| Optional Accessory | Software Kit |
| Standard Package | Meter, Battery, Manual, Hard Carry Case |
