Affordable, hand-held survey monitor is lightweight and easy to operate. Simply turn monitor on and immediately view dust concentrations on digital display. Sensing range is easily selected from 0.1 to 200 or 0.01 to 20 mg/m3 at the flip of a switch . Haz-Dust monitor is appropriate for a variety of aerosols and dusts including: lead, silica, coal, wood, dry chemicals, welding fumes, smoke, paint spray, and cadmium. Rugged, well-constructed ABS plastic case protects monitor electronics from accidental drops. Unique design provides protection against RFI/EMI waves. What's included: rechargeable battery with 110/230 VAC, 50/60 Hz charger and carrying case.