• Sourcing Solutions
  • Services & Membership
  • Help & Community

Quick Details

  • Place of Origin: Beijing, China (Mainland)
  • Brand Name: CNDingtek
  • Model Number: DF520
  • Usage: Level Sensor
  • Theory: Ultrasonic Sensor
  • Output: Digital Sensor, RS232/0-5V
  • Type: wireless fuel level sensor
  • Measuring length: 60-2000mm
  • Tyep: wireless fuel level sensor
  • Drill hole: no need
  • Origin of place: China
  • Resolution: 1mm
  • Liquid: all liquid
  • Water proof: IP 67
  • Certificate: CE

Packaging & Delivery

Packaging Details strong packed carton
Delivery Time delivery in 5 days after payment


Product Description

                        CNDingtek NB-IoT  DF520 wireless fuel level sensor 

         non-contact media ultrasonic liquid level sensor for fuel level management


1.  Overview

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. It works for kinds of tank, aluminium alloy, plastic, iron, stainless steel and etc.

There are standard, enhanced and wireless version 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. 

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


2.  Specification

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






Test Report



Packaging & Shipping


Related Products
Company Information


Transaction History of the Supplier

Below is the information about the supplier's transactions conducted via Alibaba.com. If you require further details regarding the transaction data, please contact the supplier directly.

Transaction Overview


Transaction Details

This supplier has completedtransactions with buyers from .

Shipping Destination
Transaction Value
Transaction Date
Email to this supplier
Trade Assurance
China (Mainland) | Trading Company
Transaction Level:
Supplier Assessments:
2 Transactions 2,000+
The supplier’s transactions conducted via Alibaba.com in the past 6 months.
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $53,000
Learn More