Eelink Launches BTT02 Ultra-thin BLE 6.0 Temperature Logger for Cold Chain and Logistics Monitoring

FOR IMMEDIATE RELEASE

New 2.4 mm reusable BLE temperature logger combines precision temperature sensing, light-exposure detection, local data storage, long-range Bluetooth broadcast and BeaconCloud PDF/CSV export for pharmaceutical, food and warehouse logistics applications.

SHENZHEN, China — June 2, 2026 — Shenzhen Eelink Communication Technology Co., Ltd., a provider of GPS tracking, wireless sensing and IoT visibility solutions, today announced the launch of the BTT02 Ultra-thin BLE 6.0 Temperature Data Logger, a reusable Bluetooth temperature logger designed for cold chain transportation, pharmaceutical logistics, food distribution, warehouse monitoring and other temperature-sensitive supply chain applications.

The BTT02 is built for logistics teams that need a practical way to monitor temperature history across shipments, cartons, pallets, cold rooms and refrigerated vehicles without relying only on manual checks or single-use USB loggers. With an ultra-thin 2.4 mm profile, the logger can be placed flat inside packaging, attached to cartons or deployed across storage zones while continuously recording temperature data and broadcasting status through Bluetooth Low Energy.

The device combines ±0.2°C temperature accuracy across a −20°C to +60°C measurement range with built-in light sensing, configurable temperature alarms, light-exposure alarms and low-battery alerts. It stores up to 100,000 readings locally, helping users preserve the temperature record even when a phone, gateway or network connection is not immediately available.

“Cold chain visibility is no longer only about knowing where a shipment is. Logistics operators, pharmaceutical distributors and food supply chain teams also need trusted temperature history, alarm evidence and exportable records. BTT02 was designed to make that process easier with a thin reusable logger, Bluetooth broadcast, local storage and BeaconCloud reporting.”
— Apple Ko, Eelink Communication Technology

Designed for Modern Cold Chain Data Collection

Unlike conventional USB temperature loggers that are usually checked only after a shipment arrives, the BTT02 supports both local data logging and BLE broadcast. Temperature and light data can be read by the BeaconCloud mobile app or captured by compatible Eelink BLE gateway devices and forwarded to the cloud for remote visibility.

This flexible data pathway gives users three practical options. First, the logger can work independently as an on-device recorder, storing readings locally throughout a shipment or storage period. Second, operators can connect to the logger with the BeaconCloud app to configure parameters, check historical data, synchronize time, set alarm thresholds and export records. Third, the BTT02 can be used with Eelink BLE gateway-capable trackers to support unattended monitoring, cloud upload and continuous visibility across vehicles, facilities and logistics assets.

Key Technical Highlights

The BTT02 includes a Nordic nRF54L10 BLE 6.0 SoC for efficient Bluetooth communication, with broadcast range up to 500 meters in open space. Its 1000 mAh battery supports up to three years of battery life in normal operating conditions, depending on configuration, interval settings and deployment environment.

• Ultra-thin 2.4 mm reusable BLE temperature logger design
• BLE 6.0 broadcast and Bluetooth connection
• ±0.2°C temperature accuracy across −20°C to +60°C
• Built-in light sensor for light-exposure and carton-opening events
• Configurable temperature, light and low-battery alarms
• Up to 100,000 readings stored locally on the device
• Up to 500 m Bluetooth broadcast distance in open space
• 1000 mAh battery with up to 3 years of service life
• IP67 protection for logistics and cold chain environments
• BeaconCloud app and web access with PDF/CSV export
• EELINK Beacon Protocol support for gateway integration
• Suitable for cartons, pallets, refrigerated trucks, containers and cold rooms

Supporting Pharmaceutical, Food and Warehouse Logistics

Temperature-sensitive supply chains face increasing pressure to provide accurate records, faster exception detection and stronger shipment-level accountability. In pharmaceutical and vaccine distribution, temperature history is often required to support quality review and release decisions. In food and perishables logistics, temperature deviations can cause spoilage, claims and rejected deliveries. In cold storage and warehouse environments, operators need visibility across different zones, shelves and loading areas.

For pharmaceutical and healthcare logistics, BTT02 can help teams maintain temperature history for vaccines, biologics, reagents, clinical samples and other sensitive materials. For food and perishables logistics, it can support monitoring for produce, seafood, dairy, frozen goods and refrigerated delivery routes. For warehouse and cold storage operations, the logger can be placed across rooms, racks or loading areas to support regular temperature audits and exception review.

BeaconCloud Reporting and Export

Through the BeaconCloud mobile app and web platform, users can configure collection intervals, storage intervals, Bluetooth broadcast intervals, alarm thresholds and device settings. Historical data can be viewed as temperature curves, and reports can be exported in PDF or CSV format for quality review, shipment documentation or internal analysis.

Alarm events are highlighted in reports, helping teams identify when a shipment exceeded temperature thresholds, when light exposure occurred or when battery status requires attention.

Availability

The BTT02 Ultra-thin BLE 6.0 Temperature Data Logger is now available for evaluation, sample requests and commercial deployment through Eelink.

Customers can view the product page, request technical documentation or contact the Eelink team for pricing, integration support and deployment consultation.

About Eelink

Shenzhen Eelink Communication Technology Co., Ltd. develops and manufactures GPS tracking devices, wireless sensing products and IoT solutions for fleet management, asset tracking, cold chain monitoring and supply chain visibility. Eelink supports customers across logistics, transportation, warehousing, industrial operations and connected asset management with hardware, firmware, platform and OEM/ODM capabilities.