01. Sensitivity: 7 ~ 14 μ V／w.m-2 02. Response time: ≤ 35 seconds (99%) 03 Internal resistance: about 350 Ω 04 Spectral range 0.3 ~ 3 μ m. 05 . Annual stability: ± 2% 06 The internal resistance is about 350 Ω 07 Cosine response: ≤± 7% (when the solar altitude angle is 10 °) 08 Temperature characteristic: 2% (- 10 ℃ ~ + 40 ℃) 09 Azimuth response error: ≤ 5% (when the solar altitude angle is 10 °) Nonlinearity: ± 2% 11 Weight: 2.5kg 12 Test range: 0 ~ 2000W / m2 13 Signal output: 0 ~ 20mV 14 Operating ambient temperature: - 4