The LTC2-LB from Dragino is an industrial-grade wireless temperature transmitter designed to work with external PT100 sensors. It enables precise temperature measurement using a 3-wire PT100 connection and provides reliable long-term operation in demanding environments.

The device transmits temperature data over LoRaWAN, offering ultra-long-range communication with very low power consumption. It is fully compliant with the LoRaWAN v1.0.3 Class A specification, ensuring seamless integration with both public and private LoRaWAN networks and compatibility with various LoRa servers.

Key Features

• compatible with external 3-wire PT100 sensors
• supports up to two temperature channels
• LoRaWAN v1.0.3 Class A communication
• built-in Bluetooth v5.1 for configuration and firmware updates (OTA)
• ultra-low power consumption; powered by a Li-SOCl₂ 8500 mAh battery for multi-year operation
• data logging function – allows the device to store measurements and upload them later via LoRaWAN downlink commands
• IP66-rated enclosure for harsh industrial or outdoor conditions

Typical Applications

• industrial and process temperature monitoring
• temperature control in warehouses, cold storage, or outdoor installations
• IoT systems requiring remote, low-maintenance temperature sensing

Benefits

• long-range and energy-efficient communication via LoRaWAN
• maintenance-free, long-life power supply
• simple setup and firmware updates over Bluetooth
• robust and weather-resistant design (IP66)
• flexibility to select suitable PT100 probes for specific applications

The LTC2-LB is an ideal LoRaWAN temperature node for professional and industrial IoT deployments requiring accurate, reliable, and energy-efficient temperature monitoring in remote or harsh environments.