Testo light intensity measuring instrument includes protective cap, batteries and calibration protocol. The sensor of the testo is adapted to the spectral sensitivity of the eye. This makes testo ideal for the measurement of light intensity. The Hold function allows an easy readout of the measurement values. Max. and min. values are displayed at the press of a button. testo is very handy, small and easy to operate. Features: Hold function and max./min. values Incl. calibration protocol Protective cap for safe storage Including wrist strap and belt holder Sensor adapted to spectral sensitivity of the eye Display light Storage temperature - -40 to +70 °C Operating temperature - 0 to +50 °C Battery type 2 batteries - Type AAA Battery life - 200 h Weight - 95 g Dimensions - 133 x 46 x 25 mm Probe type - Lux Meas. Range - 0 to 99.999 Lux Accuracy - ±3 Lux Resolution - 1 Lux (0 to 19.999 Lux) 10 Lux (remaining range) (Priced Per Each).