WarmMark is a single use temperature indicator which will let you know that a shipments temperature went above an unacceptable level and for how long.
For more detail, a recorder like MaxiLog PDF will provide you with a complete log of your shipments temperature data.
SpotBot with real-time temperature alarming is perfect if you need to know as soon as a food shipment’s temperature is unacceptable and could cause it to spoil.