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Impact Indicator - Indicator that monitors shocks exceeding a set limit

This mechanical indicator will display whether an impact exceeding a specific G limit has occurred. The indicator housing has two separate compartments each containing a small metal weight and a thin metal leaf spring. An impact to the indicator will move the weight, flipping the spring, which causes the colour in the arrow-shaped window to change from red to blue.

Used for:
It is used on packaging and containers to monitor possible shipment damage.

The indicator is activated only when impacted lengthwise. Three units are therefore needed to provide complete three-dimensional monitoring in six directions. The indicator is available in six G ranges, from 5G to 100G in both a resettable and a non-resettable format.

Use the indicator as a "death indicator" on toy action figures.

The sample:
Remove the metal safety pin and drop the indicator on a hard surface. Notice that it works only if impacted lengthwise. You can reset the indicator by pushing a pin through the small holes marked with arrows.

All samples come with a laminated information card 


Material Sample Shop sells material samples and small quantities of inspiring materials. You can use the samples to build your own material library or get materials for experiments.

All samples come with laminated information cards.

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