Login Login I DeutschlandEnglish
Level Measurement
Tank Level Gauging
Leak Prevention
Overfill Prevention
Alarm System for Oil Separators
Vapour Recovery Monitoring
Environmental Controller Network
Information Material
Customer Service
email us
Contact FAFNIR
Order now
Overfill Prevention Device

Standalone Overfill Prevention

FAFNIR have an overfill prevention solution for all tanks on a petrol station, underground and aboveground

  • If you need a solution for an Ad blue tank, fresh or used motor oil tank, LPG or LNG plus multiple other liquid storage tanks, FAFNIR have a solution.
  • Solutions for underground storage containers, an IBC container
    or even a small 10L barrel.
  • High or low level alarm, ATEX approval required or not, again
    FAFNIR has a solution.
Product Highlights

‘Quick & Concise

  • Easy installation with a 2-wire terminal to the transducer, fitted independent of polarity
  • The overfill sensor requires no maintenance after installation;
    no hidden costs
  • No on-site calibration required
  • Self-testing sensors


  • With no moving parts, the FAFNIR Overfill prevention 76A & NB 220
    boast excellent life expectancy and leading reliability
  • Space-saving, robust and
    corrosion-free design
  • Versatile

    Various fields of applications: Applications examples Info

Tried and tested

  • Tall tanks
  • Oil containers
  • Sumps
  • Choose for non ATEX Application the 76/NB220
  • Choose for ATEX Application the LS300/LS50
© FAFNIR GmbH - Sensors & Systems I Schnackenburgallee 149 c I 22525 Hamburg I Phone +49 40 / 39 82 07-0FooterLegal Information I Terms of Business I Disclaimer I Integrity and Compliance