DF555 Ultrasonic Level  Sensor

DF555 ultrasonic level sensor can measure the distance from sensor to the surface of liquid/solid and send data to cloud server via built-in IoT wireless module. Then user can monitor the level remotely. 

Widely applicable for the close container or open container, or even the river. Furthermore it can calculate the volume based on the dimension of container (platform features).  


Ultrasonic Technology 

Wireless Transmission

Remote Monitoring

Low Power Consumption

IP67 Waterproof

Easy Installation 


                           Network Diagram




Users can check data Dingtek’s web application or your own applications. 

Dingtek will provide protocol and SDK without signing NDA after you place order.


Dimension :  122.5*95*95mm/500g                     Weight: 500g                 

Color/Material:  Blue/ABS                                       Principle :  Ultrasonic                      

Maximum measuring distance :  500cm              Blind area :  20cm

Accuracy :  3cm                                                          Waterproof : IP67

Power supply :  Non-rechargeable Lithium Battery, ER26500*1,8500mAh@ 3.6V

Battery Life :  More than 3 years 1 (upload 4 times every day)

Wireless    :   NB-IoT/LoRaWAN/Sigfox/GPRS/4G/NB-IoT+Cat-M+GPRS

Frequency :  NB-IoT: B3/B5/B8/B20/B28, etc

                       LoRaWAN: CN470/EU868/US915/AS923/RU868/IN865/KR920Mhz

                       Sigfox: RCZ1/RCZ2/RCZ3/RCZ4

                       GPRS: 850/900/1800/1900Mhz

                       4G: LTE-TDD:B34/B38/B39/B40/B41, LTE-FDD:B1/B3/B5/B8

Operating Temperature :  -20 ~ +70℃                  Storage Temperature :  -40 ~ +85℃