Dragino LHT65N-EU868-E3 LoRaWAN Temperature/Humidity Sensor with External Temperature Probe

The Dragino LHT65N is a LoRaWAN-based sensor for simultaneous acquisition of indoor climate and a second, application-specific measured variable. It combines an integrated temperature and humidity sensor with an external temperature probe and transmits both readings energy-efficiently via LoRaWAN to the IoT platform.

This variant is suitable for applications where indoor climate and a defined process point are to be monitored simultaneously, such as a cooling unit, flow or return line, or an adjacent control cabinet.

The integrated datalog function ensures that no measurement data is lost even during temporary connection failures. Buffered values are automatically retransmitted after the connection is restored.

Features:

• LoRaWAN v1.0.3 Class A, EU868 frequency band
• Integrated temperature and humidity sensor
• External temperature sensor included
• Datalog function with automatic retransmission
• Parameterization via AT commands and LoRaWAN downlink
• Firmware update via programming interface
• Status LED for diagnostics
• Wall mounting
• Multi-year battery life (depending on transmission interval)

Internal Temperature Sensor:

• Resolution: 0.01 °C
• Accuracy: typ. ±0.3 °C
• Measurement range: -40 to 80 °C

Internal Humidity Sensor:

• Resolution: 0.04 %RH
• Accuracy: typ. ±3 %RH
• Measurement range: 0 to 96 %RH

External Sensor:

• Resolution: 0.0625 °C
  
• Accuracy: ±0.5 °C (-10 to +85 °C), ±2 °C (-55 to +125 °C)
  
• Measurement range: -55 to +125 °C

Applications:

• HVAC monitoring in office and commercial properties
  
• Cold chain and warehouse monitoring
  
• Facility management (server and technical rooms)
  
• Process monitoring with redundant or differentiated measurement point acquisition

Documents:

• Wiki