The 61F model can be selected according to the control method, installation method, liquid to be detected, wiring length, and other requirements.
There are 8 products of Floatless Level Controllers.
 Conductive Level Controller
            
            
                K8AK-LS
            
            
               Conductive Level Controller
            
            
                K8AK-LS
            
        
    Ideal for Liquid Level Control in Industrial Facilities and Equipment.
![61F-G[]N](/Images/l_243-22-118524-78x78.jpg) Floatless Level Switch (Compact Type)
            
            
                61F-G[]N
            
            
               Floatless Level Switch (Compact Type)
            
            
                61F-G[]N
            
        
    Improved Design for a More Lightweight Construction and Reduced Standby Power Consumption.
![61F-G[]](/Images/l_244-22-118523-78x78.jpg) Floatless Level Switch (Basic Type)
            
            
                61F-G[]
            
            
               Floatless Level Switch (Basic Type)
            
            
                61F-G[]
            
        
    Basic Building-block Controllers That Mount Directly to Panels for Easier Maintenance
 Floatless Level Switch (Compact, Plug-in Type)
            
            
                61F-LS
            
            
               Floatless Level Switch (Compact, Plug-in Type)
            
            
                61F-LS
            
        
    Consolidates the Specifications through Free Power Supply, thus Allowing Use in High Temperature Environments with Temperatures of Up to 70°C* * Excluding the DC power supply type.
![61F-G[]P](/Images/l_246-22-118525-78x78.jpg) Floatless Level Switch (Plug-in Type)
            
            
                61F-G[]P
            
            
               Floatless Level Switch (Plug-in Type)
            
            
                61F-G[]P
            
        
    Compact, Space-saving Plug-in Type Ideal for Pump Panels or Building into Equipment.
 Floatless Level Switch (Ultra High-sensitivity Type)
            
            
                61F-UHS / HSL
            
            
               Floatless Level Switch (Ultra High-sensitivity Type)
            
            
                61F-UHS / HSL
            
        
    Ideal for Detecting Ice, Pure Water, or Humidity
 Alternate Operation Relay
            
            
                61F-AO
            
            
               Alternate Operation Relay
            
            
                61F-AO
            
        
    Perfect for Alternate Operation of Two Pumps Free Power Supply Makes Maintenance Easy
 Alternate Operation Relay
            
            
                61F-AN
            
            
               Alternate Operation Relay
            
            
                61F-AN
            
        
    Increases Motor Life and Enables Operating Only One Pump When Cleaning Tanks or as an Emergency Measure for Pump Failures.
 Product Category
Product Category
 Switches
Switches Level Switches
Level Switches Electrode Holders / Electrodes
Electrode Holders / Electrodes Water Leak Detectors
Water Leak Detectors