Real Time Temperature Monitoring Device (RTMD)
Digitised cold-chain monitoring for vaccine refrigerators
Real Time Temperature Monitoring Device (RTMD)
RTMD is a vaccine refrigerator monitoring solution designed to digitise cold-chain performance monitoring, with an emphasis on PQS-aligned interoperability, operational resilience and actionable alarms. It supports both local-only and remote-connected deployments (4G cellular and Wi-Fi as applicable), while remaining compatible with PQS EMS architecture and data expectations.
RTMD can be deployed in two modes: PQS EMS EMD mode, where it operates as an Equipment Monitoring Device that sources logger data and provides local visualisation and optional remote data services; and a field-fitted pathway, positioned for compliance against both EMD and RTMD requirements for appliances without a logger/M2M.
Key features
- Reduced cold-chain risk through timely freeze/heat alarm detection
- Higher uptime and continuity during power interruptions
- Standardised records that can be exported and integrated into external systems
- Remote alarm notification by SMS/email
- Web dashboard and mobile app with device map
Specifications
Device Requirements
| Area | Specification |
|---|---|
| Monitoring & Data Capture | Records time-based data at least every 15 minutes and logs event-based conditions |
| On-device History | 30+ days of accessible history on display (temperatures, alarms) |
| Local Alarms | Audio-visual alarms, local muting, enable/disable with on-screen "alarms disabled" status |
| Remote Alarms | SMS / email notification when remote services are enabled |
| Power Resilience | Defined operation during power loss; 240 hours continuous operation for external EMDs |
| Power Draw | Fail-safe design within M2M power constraints |
| Interfaces | USB-C data connectivity, M2M compatibility |
| Local Data Access | Optional USB mass-storage port for audits and commissioning |
| Data Ownership | Employer-first data ownership and exportability |
| Security | Aligned to ISO/IEC 27001 evidence requirements for remote data systems |
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