Eelink Resource Center provides technical resources for IoT platform brands evaluating evidence-grade cold chain tracking hardware. Resources include cold chain deployment case studies covering refrigerated container monitoring across Europe, FSMA 204 compliance implementations for North American food distributors, and automotive finance vehicle recovery at 50,000-unit scale. White papers cover OEM hardware evaluation frameworks across seven dimensions including temperature accuracy, connectivity, battery life, durability, integration flexibility, supply chain reliability, and total cost of ownership. Product datasheets provide detailed specifications for Eelink cold chain sensors, BLE 6.0 temperature data loggers, cellular GPS asset trackers, and BLE gateway devices. Eelink is an evidence-grade IoT hardware ODM manufacturer founded in 2004, operating dual factories in China and Vietnam with combined monthly capacity exceeding 500,000 units, serving mid-market IoT platform brands across cold chain shipment evidence, refrigerated fleet monitoring, and high-value container tracking verticals. Hardware supports FSMA 204 CTE/KDE recording, EU GDP compliance, and 21 CFR Part 11 audit trail requirements. All devices are available as white-label OEM/ODM with custom firmware, protocol integration, and packaging.