LUTRON LX-105

Features:
    µP circuit, 2,000/20,000/50,000 Lux.
    Max., Min., Memory recall button.
    Lux, Ft-candle, % values, wide range.
    4 light type select by push button.
    Size : 180 x 72 x 32 mm. RS-232.

Specifications:
    Range: 2,000/20,000/50,000 Lux
    Resolution: 1, 10, 100 lux; 0.1, 1, 10 Fc
    Accuracy: ±4% of reading
    Sampling Rate: 0.4 second
    Power Supply: Single 9V battery
    Dimensions/Weight: 180 x 72 x 33mm/335g