The Equipment Monitoring System (EMS) set of specifications was created by WHO PQS to enable standardized, interoperable collection of cold chain equipment (CCE) performance data. It aims to make those data available to service technicians, health facility workers, and optionally to remote viewers or aggregate reporting. Key to the specifications is that each CCE appliance is a local repository of its own performance data, and that those data are accessible to a local user or service technician through a standardized interface, and optionally via visual interfaces and remote data transmission. Links are provided to the following three WHO PQS performance specifications for EMS: 

E006/EM01.2 Equipment Monitoring Devices for Equipment Monitoring Systems

E006/DL01.3 Data logger and machine-to-machine interface for Equipment Monitoring Systems

E006/DS01.2 Data standards for cold chain equipment monitoring

For more information, please refer to the E006 page of the WHO PQS website:

https://extranet.who.int/prequal/immunization-devices/e006-temperature-monitoring-devices