
LHT65N-PIR
Temperature/Humidity/PIR Motion Sensor
The Dragino LHT65N-PIR Temperature, Humidity & PIR sensor is a Long Range LoRaWAN Sensor.It includes a built-in Temperature & Humidity sensor and has an external PIR Probe. LHT65N-PIR can detect environment Temperature & Humdity, it also detects People Activity via PIR probe and them send these info to LoRaWAN IoT Server. The LHT65N-PIR allows users to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, building automation, and so on. LHT65N-PIR has a built-in 2400mAh non-chargeable battery which can be used for more than 5 years*.
Features
- Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
- LoRaWAN v1.0.3 Class A protocol
- AT Commands to change parameters
- Remote configure parameters via LoRaWAN Downlink
- Support wireless OTA update firmware
- Firmware upgradeable via program port
- Built-in 2400mAh battery for up to 5 years of use.
- Built-in Temperature & Humidity sensor
Thermal Anemometer
Range: 0~5/10/30m/s
1000mAh Rechargeable Battery
External DC power adapter
wireless OTA update firmware
Application guide
Choose the airflow range by deployment scenario

Cold Storage & Display Cases
For supermarket chillers, refrigerated display cases, cold storage deadzone detection, VAV terminals, and clean rooms.

HVAC Ducts & AHU Verification
For HVAC supply or extract ducts, filter pressure-drop monitoring, and air handling unit performance checks.

Industrial Ventilation & Fan Outlets
For main duct airflow, fan outlets, compressed air systems, and industrial ventilation monitoring.
How it works
Remote airflow monitoring via LoRaWAN
Deploy AirFlow-LN at critical airflow points, transmit measurements through a LoRaWAN gateway, and use platform data to detect weak airflow, filter problems, or abnormal ventilation conditions earlier.
- AirFlow-LN measures airflow in ducts, refrigeration, or ventilation points.
- LoRaWAN gateway receives data from distributed sensors across the site.
- Cloud platform visualizes trends and helps trigger maintenance decisions.


Product inquiry
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