These durable plastic and aluminum spring scales(dynamometers) offer excellent quality and ease of use. The elongation of the spring corresponds to a specific force, which is noted on the scale. Different spring scales have different spring qualities to reflect the desired maximum load. The aluminum front panel can be easily moved up or down for zero adjustment. The metal pointer indicates the value of the hanging mass in both grams and newtons.The top metal rings holds the scale firmly onto any support stand. The large hook on the bottom can accommodate a variety of different hooked masses. Dimensions are approximately 8-1/4”L x 1-3/8”W x 7/8”D. Available in a variety of weight capacities. Great for physics demonstrations and experiments.

• Zero adjustment calibration
• Durable plastic and aluminum construction
• Measures in grams and newtons
• Avalible in multiple sizes