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Quick Details

  • Place of Origin: Beijing, China (Mainland)
  • Brand Name: Dingtek
  • Model Number: Ultrasonic Sensor
  • Usage: Level Sensor
  • Theory: Ultrasonic Sensor
  • Output: Analog Sensor
  • Measurement Range: 50~2000mm
  • Blind Area: 50mm
  • Resolution: 1mm or 0.1%FS, the bigger one
  • Accuracy: 3mm or 0.3%FS, the bigger one
  • Power Supply: 9-36V DC
  • Current: 120mA@12VDC (GPRS data upload), 72ma@12VDC(other timen)
  • Protocol: Dingtek/Freeboard?Thingspeak/Customized
  • Operating Temperature: -20~70℃
  • Storage Temperature: -20~70℃
  • Media: Diesel, gasoline, water, and other liquid

Packaging & Delivery

Packaging Details The standard and firm carton to ship
Delivery Time 3


Product Description

 Cheap Ultrasonic Level Sensor With Wifi GPS Moduel

Accurate Ultrasonic Water oil fuel level sensor for remote monitoring



The DF520 is non-touch ultrasonic level sensor, which is applicable for fleet fuel management for generators, engine fuel tank, fuel shipping tank, or construction engine fuel tank. SO, it is widely used as a ultrasonic fuel level sensor.And it works for kinds of tank, aluminium alloy, plastic, iron, stainless steel and etc.

For the standard version, it is one type of ultrasonic level sensor which measure the liquid level without drilling hole on container. The resolution is 1mm or 0.1%FS (the bigger value). The measurement ranges from 0-2 meters. 

The standard version work for up to 3mm thickness tank. If your tank thickness is more than 3mm, you can try the enhanced version DF521, which can work for 10mm thickness tank, such as construction machine and etc.

For the DF520/520, there is wireless option available. It is integrated with GPRS+GPS (or WCDMA+GPS), so it can upload data to server directly. Also It supports to upload data to third party IOT platform, such as Thingspeak™.

It is opened for customized design (OEM/ODM) on hardware or software.


Measurement Range50~ 2000mm 
Blind Area50mm (0-50mm maybe not be read out successfully)
Resolution1mm or 0.1%FS, the bigger one
Accuracy3mm or 0.3%FS, the bigger one 
Power Supply10-32V DC
Current120mA@12VDC (GPRS data upload), 75ma@12VDC (other time)
Wireless ModuleGSM/GPRS quad band (850/900/1800/1900MHz), or
WCDMA/UMTS/HSDPA 900/2100MHZ or 850/1900MHZ
Operating Temperature-20 ~ 70℃
Storage Temperature-40 ~ 85℃
ProtocolDingtek / Thingspeak/ ModBus RTU/Customized
Protection RankIP66
MountingTransducer stick to tank bottom by glue and tape;
Controller box stick to open sky position by tape
LED DisplayOptional tool for installation to show the liquid level
DimensionTransducer ø30, Controller box 80*78*30m






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