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Quick Details

  • Place of Origin: Beijing, China (Mainland)
  • Brand Name: Dingtek
  • Model Number: DF550
  • Type: F550 water level sensor
  • Measurement Range: 20~ 12000mm (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℃
  • Shell Material: Polyamide
  • Protection Rank: IP66
  • Mounting: Flange

Packaging & Delivery

Packaging Details wireless sensor Packed by strong cartons and foam fillings.We provide standard, strong,protective package for our products to prevent it from outer damage.
Delivery Time Shipped in 7 days after payment


Product Description


       Dingtek DF550 NB-IoT LoRaWAN all in one measuring device

    wireless remote ultrasonic water / oil / liquid / fuel tank level sensor


1. Overview

The DF550 is one type of ultrasonic level sensor 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 version for F550, including zigbee, Wifi, GPRS, 3G. Furthermore, GPS module is one optional for the F550. As a result, F550 can be used as gps tracker also.



2. Specification

Measurement Range30~ 300mm
Blind Area30cm version: 3cm.
Power Supply10-32V DC
Output SignalRS485, RS232, 0-3.3V, 4-20mA, TCP
ProtocolModbus RTU/ Dingtek /Thingspeak/Customized
Operating Temperature-20~70℃
Storage Temperature-40 ~ 85℃
Shell MaterialPolyamide
Transducer MaterialPolyamide, (PVDF for erosive environment)
MediaSolid or liquid (except strong acid or strong base)
Protection RankIP66
LED DisplayOptional
WirelessOptional for zigbee, wifi, GPRS, WCDMA, LoRa, NB-IOT

Standard version: 70mm(H)*72mm(W)*72mm(L) or                                                                   

Zigbee/wifi/GPRS/UMTS version: 115mm(H)*72mm(W)*72mm(L)


3. Advantage

4. Mechanical Drawing

5. Connection With Other Device

Test Report






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