Optically Worked Double Convex Glass Lens, 75mm Diameter, 250mm Focal Length Included_Bosshead Plastic holder atop a 4

Plastic holder atop a 4

Regulated dual AC/DC power supply displaying voltage and current on independent digital readouts

this twenty-meter fiberglass tape measure carries a non-conductive waterproof PVC coating

The hBAR infrared thermometer is perfect for remotely measuring the temperature of objects

exposing pulmonary and cardiac anatomy separately or together across a 16

Optically Worked Double Convex Glass Lens, 75mm Diameter, 250mm Focal Length Included_Bosshead Plastic holder atop a 4Long focal double convex glass lens at 75mm diameter and 250mm focal length, the f 3. 3 geometry stretching focal throw for distant screen projection of well formed real images.