• Search All Products
  • Air Conditioning
  • Cooking
  • Dishwashing
  • Energy
  • Heating
  • Laundry
  • Refrigeration
  • Service Products
  • Specialty Applications
  • Transportation


Liquid Lever Detector Series

The Robertshaw® Mini-Tek Liquid Level Detector is used to detect the levels of liquids in major diesel engines. The Robertshaw Mini-Tek operates on the electrostatic or capacitance sensing principle. The probe portion of the unit, extending into the liquid, produces a change in electrical capacitance when liquid displaces the air immediately surrounding the probe. The Robertshaw Mini-Tek detector will provide warning when liquid levels reach approximately 50% of capacity. This provides time to take action before damage is done to the engine. The Robertshaw Mini-Tek comes in three different models. Model 613 Coolant Level Detector, Model 614 Hydraulic Oil or Fuel Detector, Model 624 Motor or Gear Fuel or Oil Detector. 

Features and Benefits

  • Voltage Protected
  • Rugged Construction
  • All solid state with no moving parts
  • Reverse Polarity Protection
  • Self-Test Capability 

    Terminal Configurations:
    Designation  Description
    0          Three Spade Terminals; +, SIG, TEST (no isolation).
    B    Four Spade Terminals; +, -, SIG, TEST (DC isolation is provided between the body and circuit). 
    C   Four Wire Leads ****#16 AWG; +, -, SIG, TEST (DC isolation is provided between the body and circuit). 

General Warning_ColorWARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects, or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.

Series ApplicationLiquid Level Detector
Alarm ModeLow Liquid Level
Load ConfigurationUngrounded
Time DelayNone
Terminal Configuration0