REED Instruments LM-81LX Compact Light Meter, 20,000 Lux / 2,000 Foot Candles (Fc) Easy to operate, compact design Measuring Range: 0 to 20,000 (Lux) / 0 to 2,000 (Fc) Basic Accuracy: 5% of reading Min/Max and data hold functions, Zero adjustment button Includes wrist strap and battery