Sea Freight Monitoring
Low-Cost Datalogging
Offline temperature logging for sea freight containers on extended voyages. No gateway required during transport — loggers operate independently with LED status indicators showing pass/fail at a glance. Data is downloaded at the destination port.
Voyage-Long Container Logging
Sea freight containers carrying pharmaceuticals, food ingredients, or chemicals can spend 20–40 days at sea with no connectivity, passing through extreme climate zones and multiple port handling events — all without any visibility for the shipper. Discovering a temperature excursion only at the destination port means the entire cargo may be unsalvageable and the cause untraceable. This offering captures a continuous record for the full voyage so excursions can be pinpointed to a specific leg or port stop.
How it's deployed
Long-duration loggers rated for maritime environments are placed inside the container at origin and run fully offline for voyages of up to 90 days at configurable 10- to 60-minute logging intervals. Integrated LED indicators on the logger face give dock staff an immediate pass/fail status at the destination port without needing any device or software — a green LED confirms the cargo remained within specification.
Evidence & Reporting
The downloaded dataset produces an EN12830-compliant temperature record covering the entire voyage, with timestamps correlated against the vessel schedule to identify which port call or leg caused any excursion. A GDP-formatted summary report is generated for inclusion in the receiving quality management system and can serve as supporting documentation for cargo insurance claims or shipper dispute resolution.
Included and Optional Capabilities
Included
- Logger with LED Status
Visual status indicator
- Manual or Automated Uploads
Flexible data upload options
Optional add-ons
- Smart-package Timestamping
Automatic event timestamps
- Regulatory-compliant Export Documentation
Compliance documentation
- Return/Reuse Lifecycle Management
Packaging lifecycle management
Related Low-Cost Datalogging Offerings
Frequently Asked Questions
Each logger is secured with a tamper-evident adhesive mount and a numbered security seal, and the audit log records any attempt to connect to the device mid-voyage. The final report flags any mid-voyage data access events so the receiving quality team can assess whether the chain of custody remained intact.
For regulatory documentation purposes, a single logger placed at the warmest point of the container satisfies GDP requirements for a worst-case temperature record. For larger containers or shipments requiring spatial mapping, multiple loggers can be deployed and their data merged into a single multi-point voyage report.
A 15-minute interval provides more than sufficient resolution to identify excursion events and their duration while keeping battery consumption well within the 90-day rated capacity. For voyages where port dwell time at hot intermediate ports is the main risk, a 10-minute interval during the first and last 48 hours can be pre-configured to capture higher-risk handling windows.
Plan Sea Freight Monitoring
Talk with Seemoto about the sensor, gateway, reporting, and compliance setup for sea freight monitoring.