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Quick Details

  • Place of Origin: Beijing, China (Mainland)
  • Brand Name: Dingtek
  • Model Number: F550
  • Usage: Level Sensor
  • Theory: Ultrasonic Sensor
  • Output: analog & digital output
  • Type: F550 water level sensor wireless
  • Measurement Range: 300~ 30000mm (for different model)
  • Resolution: 1mm or 0.1%FS, the bigger one
  • Power Supply: 10-32V DC
  • Output Signal: RS485, RS232, 0-3.3V, 4-20mA, TCP
  • Protocol: Modbus RTU/ Dingtek /Customized
  • Operating Temperature: -20~70℃
  • Storage Temperature: -40 ~ 85℃
  • Shell Material: Polyamide
  • Protection Rank: IP66

Packaging & Delivery

Packaging Details Strong carton
Delivery Time ship in 4 days after payment




Test Report


Product Description

The DF550 is one type of ultrasonic level sensors which measure the air height in the container directly and calculate the level height based on the total height of the container. The resolution is 1mm or 0.1%FS (the bigger value).

It is applicable for the close container or open container.  Furthermore it can calculate the volume of the container or the liquid. As with RS485, it is easy to integrate into the embedded system or SCADA.

In order to realize remote monitoring, there are wireless versions for DF550, including zigbee, Wifi, GPRS, 3G



Measurement Range

30~ 12000mm (for different model)

Blind Area

0.3 meter version: 3cm

2 meter version: 20cm.

5 meter version: 25cm.

12 meter version: 150cm.


1mm or 0.1%FS, the bigger one

Power Supply

10-32V DC

Output Signal

RS485, RS232, 0-3.3V, 4-20mA, TCP


Modbus RTU/ Dingtek /Thingspeak/Customized

Operating Temperature


Storage Temperature

-40 ~ 85℃

Shell Material


Transducer Material

Polyamide, (PVDF for erosive environment)


Solid or liquid (except strong acid or strong base)

Protection Rank




LED Display





Optional for zigbee, wifi, GPRS, UMTS.


Standard version: 70mm(H)*72mm(W)*72mm(L) or zigbee/wifi/GPRS/UMTS version: 115mm(H)*72mm(W)*72mm(L)

Company Information
  • Focusing & Professional, Cost-effective product & service;
  • OEM/ODM Customized service for worldwide partner;
  • 40 R&D Engineers Team, cover 100% phase from conception, design to production.
  • CE certificates, high quality for industrial application.



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