LoRaWAN Door Sensor with Built-in T&H Sensor

A door and access sensor that combines open/close detection with room temperature and humidity in one device. The magnetic door contact on a 1 m cable is housed in metal for durability, so the sensor body can sit neatly away from the door frame on cold-room doors, cabinets, gates, hatches and plant-room entrances. Every opening is reported over LoRaWAN to NARA, where you can see how long doors stay open and correlate it with temperature changes — useful for cold chain, server rooms and secure storage. The built-in 2,400 mAh battery avoids power wiring.