LED Light Meter, FC Light Level Resolution 0.01 fc, FC Maximum Light Level Measured 19,990 fc, FC Minimum Light Level Measured 0 fc, Lux Light Level Resolution 0.1 lux, Lux Maximum Light Level Measured 199,900 lux, Lux Minimum Light Level Measured 0 lux, Batteries Included Yes, Auto Power Off Yes, Manufacturer Warranty Length 1 yr, Digital Display Screen Type LCD, Battery Run Time 80 hr, Battery Size AA, Number of Batteries Required 2, Includes Detachable Sensor, Sensor Cover, Light Tested LED