AUTO SELECT WAVELENGTH SELECTOR;0 TO 2 A PHOTOMETRIC RANGE;10 USER ENTERED PROGRAMS;LCD DISPLAY;470 GRAMS;4 AA ALKALINE OR RECHARGEABLE ALKALINE BATTERIES;M40 TO 60 DEG C STORAGE TEMPERATURE;0 TO 50 DEG C OPERATING TEMPERATURE;DUSTPROOF AND WATERPROOF TO ONE METER FOR 30 MINUTES