TEK811 Ultrasonic NB-IoT/CAT-M1

Our Ultrasonic 4G NB-IoT/CAT-M1 is a flexible and configurable battery operated liquid level sensor with an integrated Cellular modem supporting GSM (2G), LTE-CAT M1 & NB-IoT networks.

Categories ,


  • Liquid level monitoring
    • Fuel – Oil, Kerosene, Diesel
    • Lubricants
    • Additives
    • DEF / AdBlue
    • Coolants
    • Water
    • Waste Oil
    • Wastewater
    • Chemicals – *This product may not be suitable for monitoring of certain corrosive and hazardous chemicals. List of product compatible chemicals to be verified with a Tekelek representative.
  • Fixed or portable tanks
  • Ensure continued supply
  • Optimise delivery or collections
  • Spot and continuous inventory measurement


  • Accurate, reliable tank level monitoring
  • Programmable data reporting interval
  • Remote configurability
  • Easy to install
  • Minimum 1 year warranty
  • CE Conformance, ROHS and PTCRB Compliant
  • International Approvals
  • Programmable alarms
    • Full alert
    • Empty alert
    • Spill alert (bunded tanks)
    • Fill alert
    • Low and High levels
    • 24/7 Monitoring



Installation Guide


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