| Sensitivity | (W/m2) | 9 µV |
| Impedance | (Ohms) | 650 |
| Temperature dependence | (C) | 1% over −20 + 40 |
| Linearity | (W/m2) | ±0.5% from 0 - 2800 |
| Response time | (S) | 1 (for a 1/e relaxation) |
| Cosine response | (Degree) | 1% for 0 - 70 (from zenith) |