MM12 - Wheel diameter 4"; circumference is 12". Automatically records measurements line to line, overhead, around curves and over contours. Its compactness and telescoping handle makes it handy take along. Push-button counter records feet and inches up to 10,000 ft. without resetting. Counter subtracts as well as adds. Weight 2 lbs.

MM30 - Wheel diameter 11-1 /4"; circumference 36". Light and compact enough for indoor measuring, and strong and durable for most outdoor assignments. Danaher counter records in feet and inches up to 1000 ft., can be reset to zero by push button. Weight 3-1/4 lbs.

MM50 - Wheel Diameter 19"-circumference is 5'. Strong steel construction makes this an ideal choice for accurate measuring over rough and uneven terrain. Precision Danaher counter measures in feet and inches. Special handle provides firm grip and greater convenience for the operator. Weight 6- lbs.