EMS Introduction Video

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This page was written by the New Horizons engineering team, which operated until December 2025. First-person references ("we", "our") are the original authors'. A number of those authors are now working with Phoenix GH, which maintains this material and stands behind it. Questions and comments are welcome — please get in touch.

Last update: July 31, 2025

Video

Description

An introduction to Equipment Monitoring Systems (EMS), a new WHO requirement for vaccine refrigerators starting in 2026. Learn how EMS helps improve cold chain reliability through better data access, streamlined troubleshooting, and integration with national systems. This video outlines what EMS means for health workers, technicians, and program managers as the transition begins.

If you'd like to read along with this video or translate the voiceover into the language of your preference, please click here to download a transcript: EMS Introduction Transcript (English)

Visit the WHO PQS website to see the latest prequalified models:
https://extranet.who.int/prequal/immunization-devices/who-catalogue-prequalified-immunization-devices

Visit the WHO Supply Chain Guidance page for job aides and additional support:
https://www.who.int/teams/immunization-vaccines-and-biologicals/essential-programme-on-immunization/supply-chain/guidance