Spectrum Technologies 3413F LightScout 英尺烛光计 (0-19990 Foot-Candles)

Displays immediate light level in units of foot-candles

Battery: 9V battery

Accuracy: ±5%. Cosine correction is accurate to ±3% at 45°, and ±7% at 80°

Meter range: 0-19990 Foot-Candles. 

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