Topfly T-One BLE 5.1 Probe Temperature Sensor 1m Cable
Wireless Probe Temperature Monitoring Sensor for Cold Chain, Logistics & Industrial IoT
The Topfly T-One BLE 5.1 Probe Temperature Sensor is a professional-grade wireless sensor designed for accurate temperature monitoring in extreme and remote environments.
Featuring a 1-metre external probe, the T-One enables precise temperature measurement directly at the source—while keeping the main device safely outside harsh environments such as refrigerated containers or industrial equipment.
Using Bluetooth Low Energy (BLE 5.1), the sensor seamlessly integrates with compatible IoT gateways and asset trackers, enabling real-time monitoring without the need for cellular connectivity on the sensor itself.
With its high-accuracy sensing, IP67 waterproof enclosure, long battery life, and flexible probe installation, the T-One is ideal for cold chain logistics, food transport, pharmaceuticals, and industrial monitoring applications.
Key Features
External Probe for Accurate Temperature Measurement
The 1m cable probe (standard) allows direct measurement inside environments such as:
- Refrigerated containers
- Cold storage rooms
- Freezers and transport vehicles
- Industrial processes
This ensures more accurate readings compared to internal-only sensors while protecting the main unit.
Wide Temperature Range for Extreme Environments
Designed for demanding applications, the probe supports:
- −40°C to +125°C measurement range
- Suitable for frozen goods, pharmaceuticals, and industrial environments
The sensor housing operates from −30°C to +80°C, ensuring stable performance in outdoor installations.
High Accuracy Temperature Monitoring
Provides precise temperature readings with:
- Accuracy as high as ±0.1°C (35°C to 45°C range)
- Stable long-term performance with minimal drift
Ideal for compliance-critical cold chain monitoring.
BLE 5.1 Long-Range Wireless Connectivity
Utilises Bluetooth 5.1 for efficient communication:
- Up to 200m transmission range (open field)
- Low power consumption
- Seamless integration with BLE-enabled asset trackers
Perfect for container, trailer, and warehouse deployments.
Long Battery Life (Up to ~5 Years)
Powered by a CR2477 1000mAh battery, the T-One offers:
- Up to ~1800 days (~5 years) depending on configuration
- Adjustable broadcast intervals for optimised power usage
This reduces maintenance and operational costs.
Rugged Industrial Design (IP67)
Built for harsh environments, the device features:
- IP67 waterproof enclosure
- Compact and robust housing
- Suitable for outdoor and industrial deployments
Smart IoT Integration & Data Logging
The T-One supports:
- Integration with Topfly GNSS trackers and IoT platforms (IQFLOW, ThingsBoard, MQTT systems)
- Local data storage (up to 10,000 records) for offline logging
- Real-time alerts when temperature thresholds are exceeded
This enables both real-time monitoring and historical analysis.
Flexible Installation for Cold Chain Use
Designed for optimal cold chain performance:
- Install probe inside cold environment
- Keep main unit outside to preserve battery life
- Multiple mounting options (screws, adhesive, zip ties)
This ensures maximum performance and longevity in low-temperature environments.
Typical Applications
The T-One BLE Probe Sensor is ideal for:
- Cold chain transport monitoring
- Refrigerated trucks and containers
- Food and fresh produce logistics
- Pharmaceutical storage and transport
- Freezers and cold rooms
- Industrial temperature monitoring
Technical Specifications
| Specification |
T-One Sensor |
| Connectivity |
Bluetooth 5.1 (BLE) |
| Transmission Range |
Up to 200m (open field) |
| Temperature Range (Probe) |
−40°C to +125°C |
| Temperature Accuracy |
±0.1°C to ±0.7°C (depending on range) |
| Probe Length |
1m cable + 5cm probe (standard) |
| Battery |
CR2477 1000mAh (non-replaceable) |
| Battery Life |
Up to ~1800 days (~5 years) |
| Waterproof Rating |
IP67 |
| Dimensions |
59.9 × 40.0 × 14.6 mm |
| Weight |
59g (with probe) |
| Operating Temperature (Housing) |
−30°C to +80°C |
| Protocols |
Eddystone, Beacon |
| Installation |
Screw, adhesive, zip tie |
What’s Included
- T-One BLE Probe Temperature Sensor (1m cable)
- Mounting accessories
- User documentation
Why Choose T-One BLE Probe Sensor
- Accurate probe-based temperature monitoring
- Wide temperature range for extreme environments
- Long battery life (up to ~5 years)
- Low-power BLE connectivity
- Rugged IP67 industrial design
- Seamless integration with IoT platforms
The Topfly T-One BLE Sensor is a professional solution for cold chain and industrial temperature monitoring, delivering reliable, accurate, and low-maintenance performance in demanding environments.
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