Operation Manual Model RAH-100 Hand Held Refractory for Antifreeze and Battery Fluid Range: 6010 32° F polypropylene geology 601032° F of lens glycol Will rum Division: 10° F Dimensions: 27 x40 160m Weight: 176 grams Calibration Focus Daylight Plate Screw Adjustment Marin Prism Rubber Eyepiece Assembly Grip Poor Good Poor As soar hor poking [19 Hope instrument _ Upper Blue Fled | Boundary Line oust to here Lower White Flied IN Open daylight plate,and place 2-3 crops of distilled wale on the main prism.