Shock Indicator, also known as impact indicator, is a single use impact detection device that will activate (turn red) when an impact level exceeds the g force threshold of the unit. The shock indicators can stick to your package or directly on a product inside for different needs in various industries. Activates from white to red to show impact when dropped. The red cannot be reset and provides shippers to pinpoint the irresponsible handling in your supply chain. Moreover, a g force impact monitoring can indicates potentially concealed damage products, decrease claims and alert recipient to inspect items. A study shows the damage rate typically drops by 50% or more when a monitor is in place. Various types and sizes supplied. Stop your damaged delivery today! For more info/requests, please search the official website - WanYo, and contact our sales!