Environmental parameter indicator for perishable goods

摘要: An electronic device is proposed for accompanying a perishable good during one period to monitor the exposure of an environmental parameter, such as temperature. The includes data interface receiving representing parameter immediately preceding period. It further sensor measuring parameter. Also, processor using relationship specific (such Arrhenius equation that good) compute characteristic at end received and output sensor. memory recording To economise on usage, stored faster rate periods when most significant (e.g. it indicates high temperature). A switch provided indicating should not be taken into account in computation, short interval, which example may being handled.