This unit measures optical power from 100 nW to 10 mW (full scale) over 11 ranges. It is sensitive to wavelengths from 450 nm to 1100 nm (see photo with sensitivity graph). Operates on 4 AA cells (I just installed new ones).
50ft Commercial Cord High Capacity Allergen Filtration Dust Bag Double Ball Bearing Steel Brushroll Durable polycarbonate hood Heavy duty no mark wheels Style F&G bags Heavy Duty Motor
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