DT322 Smart Odor Sensor

DT322 is an advanced, configurable indoor odor sensor aimed at building automation. Users can monitor the level of amine series, sulfur gas, temperature, humidity remotely through built-in NB-IoT wireless module. The outputs are 0-30 PPM. Widely applicable for smart public toilets, garbage room, public spaces, etc 


Detection of multiple gases

Remote control and monitoring

Low power consumption

Battery powered or DC powered

LED indicator 

Easily accessible

Network Diagram

When the device detects the status of odor, it sends a frame to the base station, 

then base station forward to cloud server, then to application. Finally user can monitor the status remotely. 



Odor Measurement Elements : amine series, sulfur gas 

Temperature Measurement : -30~+85℃(±0.3℃)

Humidity Measurement : 0-90%(±2%RH) 

Odor Output Level : 0-30PPM; 

Power Consumption : Upload ≤600mA; Detection≤100mA

Internal Battery : 1000mAh@ 3.7V Lithium Battery, Life time 10 days

 Recharge Interface : Micro-USB 500mA@5V

Recharge LED : Red: not full battery; 

Blue : Full battery

Wireless NB-IoT Band : B3/5/8/20/28. 

Protocol : TCP/MQTT 

Working Environment : -40 ~ 85℃, 5~95%RH