These high-quality metric spring scales are precise, durable, and calibrated in Newtons. Five different scales are available. Students can measure forces from a fraction of a Newton to 20 Newtons with excellent accuracy.
Accurate: The precision springs provide excellent linearity, and the 10 cm long scales are sharp and clear for superior resolution.
Sealed Spring: Can’t get tangled, over-stretched, or lost.
Zero Adjust: Turn the knob to zero the balance.
Scales on Inside: They won’t wear off.
Five Color-coded Ranges: Measure almost any force from 0.1 N to 20 N.
WARNING: CHOKING HAZARD!
Small parts. Not for children under 3 years.