Dragino LTC2-LT LoRaWAN Low Temperature PT100 Sensor (EU868)

The Dragino LTC2-LT is an industrial LoRaWAN low-temperature monitoring solution, designed for accurate and reliable temperature measurements in refrigerated, frozen and cryogenic environments.

The device combines the Dragino LTC2 LoRaWAN Temperature Transmitter with one external low-temperature PT100 Class A probe, providing a complete sensor-and-transmitter combination for remote temperature monitoring.

The supplied PT100 probe features a measurement range from −196°C to +150°C, making it particularly suitable for applications requiring temperature measurements far below the operating range of conventional temperature sensors.

The probe is equipped with a 2-meter cable and a compact stainless-steel sensing element designed for insertion into suitable measurement locations.

The LTC2 transmitter supports two independent 3-wire PT100 measurement channels, allowing the connection of an additional compatible PT100 probe when required.

The device converts the electrical resistance measurements of the connected PT100 probe into temperature readings and transmits the collected data to a compatible LoRaWAN gateway and network server.

Operating on the EU868 frequency band, the LTC2-LT uses LoRaWAN 1.0.3 Class A technology to provide long-range wireless communication with low power consumption.

The transmitter is powered by an 8,500 mAh non-rechargeable Li-SOCl₂ battery, eliminating the need for a permanent electrical power connection in suitable installations.

Depending on the transmission interval, network conditions and environmental factors, the manufacturer indicates a potential battery service life of approximately 2–10 years.

The LTC2-LT also supports local temperature data logging, enabling historical temperature measurements to be stored and subsequently retrieved through supported LoRaWAN downlink commands.

This functionality is particularly valuable for cold chain and low-temperature monitoring applications where maintaining a record of temperature conditions is important.

The device supports remote configuration through LoRaWAN downlinks, while local configuration and firmware maintenance are available through its serial console interface.

Its measurement system uses calibrated resistance measurement channels, providing reliable conversion of PT100 resistance values into temperature readings.

The PT100 Class A sensing element is suitable for precision temperature monitoring. However, actual measurement uncertainty depends on the probe characteristics, calibration and installation conditions, particularly at extremely low temperatures.

The LTC2-LT is especially useful for monitoring cryogenic storage systems, laboratory freezers, vaccine transportation, pharmaceutical storage, cold rooms and industrial refrigeration equipment.

The compact probe can be installed at the required measurement point, while the wireless transmitter can be positioned in a suitable location within its specified operating temperature range.

With its combination of ultra-low temperature measurement capability, LoRaWAN connectivity, battery-powered operation and historical data logging, the Dragino LTC2-LT provides a flexible solution for professional temperature monitoring.

Important: The −196°C to +150°C range refers to the external PT100 probe, not the operating temperature of the LTC2 transmitter. The transmitter must remain within its specified environmental limits. The LTC2-LT is not automatically a certified pharmaceutical or vaccine monitoring system; any required validation, calibration or regulatory compliance must be assessed separately.

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🔑 Key Features

❄️ Ultra-Low Temperature Monitoring – Measures temperatures from −196°C to +150°C using the supplied PT100 probe.

🌡️ PT100 Class A Probe Included – High-quality external resistance temperature sensor for low-temperature applications.

📏 2-Meter Probe Cable – Flexible installation of the sensing element away from the transmitter.

🔌 Dual PT100 Channels – Supports up to two independent 3-wire PT100 probes.

📡 LoRaWAN EU868 – Long-range wireless communication for European LoRaWAN networks.

📶 LoRaWAN 1.0.3 Class A – Low-power communication for professional IoT installations.

🔋 8,500 mAh Battery – Non-rechargeable Li-SOCl₂ battery for long-term operation.

⏳ Extended Battery Life – Manufacturer-estimated 2–10 years depending on working conditions.

📊 Temperature Data Logging – Stores historical measurements for later retrieval.

🔄 Historical Data Retrieval – Access stored temperature records using supported LoRaWAN commands.

🎯 Calibrated Measurement Channels – Resistance measurement system calibrated across multiple reference values.

⚙️ Remote Configuration – Supports LoRaWAN downlink commands.

🔧 Serial Console Configuration – Local configuration and firmware maintenance.

🔋 Battery Monitoring – Transmits battery status information.

🧊 Cryogenic Applications – Suitable for monitoring extremely low temperatures with proper installation.

💉 Pharmaceutical Cold Chain – Temperature monitoring for temperature-sensitive storage and transportation.

🔬 Laboratory Applications – Monitoring of laboratory freezers and cryogenic equipment.

🏭 Industrial Refrigeration – Remote monitoring of industrial cooling systems.

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🛠 Applications

🧊 Ultra-Low Temperature Freezers – Monitor freezers operating at very low temperatures.

❄️ Cryogenic Storage – Temperature monitoring in suitable cryogenic storage applications.

💉 Vaccine Transportation – Monitor temperature conditions during the transportation of temperature-sensitive vaccines.

💊 Pharmaceutical Storage – Monitor storage temperatures for pharmaceutical products.

🔬 Laboratories & Research – Measure temperatures in laboratory equipment and experimental installations.

🏥 Medical & Biotechnology Facilities – Remote monitoring of specialized temperature-controlled equipment.

🚛 Cold Chain Logistics – Temperature monitoring during storage and distribution.

🏭 Industrial Refrigeration – Monitor industrial refrigeration systems and low-temperature processes.

🍽️ Frozen Food Storage – Temperature monitoring in commercial and industrial freezer installations.

📦 Temperature-Sensitive Inventory – Monitor storage conditions for products requiring controlled temperatures.

📡 Remote IoT Temperature Monitoring – Wireless temperature measurement at distributed locations.

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📦 Package Includes

• 1 × Dragino LTC2 Industrial LoRaWAN Temperature Transmitter

• 1 × Low Temperature PT100 Class A Probe

• 1 × 2 m probe cable, attached to the supplied probe

• Integrated 8,500 mAh non-rechargeable Li-SOCl₂ battery

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📥 Product Downloads

📄 Datasheet
📖 User Manual