If stored under the correct conditions, this is highly unlikely to happen, but if it does, the built-in activation window lets you know it. If this happens, don’t use the indicator and select another. There is no need to contact us, as we ship 1 or 2 extra indicators per pack free of charge anyway.
adminWhat if one of the indicators in the box is showing the indication window already blue before I’ve squeezed it?
The activation window gives an immediate confirmation that the indicator is armed as it turns from yellow to green. If this doesn’t happen immediately, then fully re-squeeze the button between thumb and finger. The breach/indication window (white with a red border) is separate so that you can clearly see if there has been a breach of the 10°C/50°F temperature threshold. If no breach has occurred the window will remain white. It will turn blue if there is a breach.
adminWhy is there an activation window and a breach window?
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