Temperature and Humidity Sensor with External Probe LHT65S-E3 – Dragino LoRaWAN EU868

The Dragino LHT65S-E3 is designed for IoT applications where ambient temperature and humidity monitoring must be combined with temperature measurement at a second, separate point. By combining built-in temperature and humidity sensing with an external temperature probe, it fits installations where both room conditions and a specific surface, line, cabinet, or enclosed area need to be monitored at the same time.

This makes it especially useful in applications where air readings alone are not enough. Typical use cases include cold rooms, storage areas, refrigeration equipment, plant rooms, HVAC systems, pipe monitoring, distribution cabinets, control panels, and temperature-sensitive operating environments. While the internal sensor measures the surrounding air conditions, the external probe can be positioned where the critical reading is actually needed.

That setup is particularly valuable for professional LoRaWAN projects. Integrators and operators can use one device to monitor both general room climate and a precise temperature point. Typical deployments include monitoring supply and return lines in HVAC systems, checking cabinet or enclosure temperatures, supervising cooling zones, tracking conditions in technical rooms, and retrofitting commercial or industrial sites with wireless environmental monitoring.

The LHT65S-E3 operates on EU868 LoRaWAN and is designed for energy-efficient, low-maintenance operation. Its datalog feature stores readings during temporary network loss so measurement history can still be retrieved later. This is especially useful in larger buildings, distributed technical areas, and installations where radio coverage may vary.

With its built-in 2400 mAh battery, the sensor is suited for long-term deployment without frequent service work. For system integrators, building automation projects, and industrial monitoring installations, the LHT65S-E3 is a practical choice when temperature, humidity, and an external temperature point all need to be captured over LoRaWAN.