LHT65: Temperature and Humidity Sensor

The LHT65 is a long range LoRaWAN node that includes a built-in SHT20 temperature & humidity sensor and allows for easy interface with various external sensors. Telemetry2U offer multiple pre-configured options. Including a 1 meter waterproof temperature sensor, a 2 meter temperature sensor with a flat cable (ideal for fridges or freezers), a light sensor or a cable to interface to custom sensors with either an interrupt, ADC or counting sensor output. The LHT65 device is fitted with a button that can be used for power on/off control or to reset the device. LHT65 also comes with an LED to indicate connection status.

SKU: T2U-LHT65-AU915 Category: Tag:

The LHT65 allows users to measure and send data, reaching ultra-long ranges via LoRaWAN networks. It provides spread spectrum communication and high interference immunity whilst minimising power consumption. It is a reliable and simple solution for critical temperature monitoring applications, including laboratory and hospital environments.


The LHT65 has a built-in 2400mAh non-chargeable battery with a lifespan of up to 10 years (depending on the transmit frequency). It includes an internal memory capable of storing 3200 data records with a date/time stamp that can be retrieved via the supplied programming cable (USB-TTL converter will be required and is sold separately).

The LHT65 is pre-programmed to send records every 20 minutes, with capability to be customized to suit user needs.


The LHT65 is calibrated and tested out of the factory. NATA calibration with a certificate of certification can be provided if required, making it perfect for critical monitoring applications.





Full Specifications

  • LoRaWAN class A protocol
  • AT Commands to change parameters
  • Remote configure parameters via LoRaWAN downlink
  • Firmware upgradable via program port
  • Built-in 2400mAh battery with 10-year lifespan*
  • Built-in temperature & humidity sensor
  • Optional external sensors
  • Tri-color LED to indicate status
  • 3200 set sensor record with time stamp
  • Vaccine fridge and freezer monitoring
  • Laboratory equipment temperature monitoring
  • Hospital equipment temperature monitoring
  • Farming & agricultural
  • Residential
  • Industrial
Dimensions and weight
  • Device size (mm/pcs):135 x 70 x 30mm
  • Device weight: 105g
  • Package size (mm/pcs):145 x 80 x 50mm
  • Package weight: 170g
Package contents
  • 1 x LHT65
  • 1 x Waterproof DS18B20 temperature sensor with a 1 meter lead
  • 1 x Programming cable

Servicing, Calibration and Support

Imbros’ local engineering department can service, repair and calibrate your instrument without expensive shipping costs or wait times.


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