|  | 
         
          |    Close-up of SP-1 probe for controllers
 |  | FEATURES | 
         
          | SP-1: TDS Sensor Probe for Panel Mounted Controllers 
              SP-3: TDS Sensor Probe for Inline Dual TDS MonitorsDurable plastic probeStainless steel sensorsHigh quality construction 
              Available in shielded or open cablesAvailable as single sensors with 2-pin connectorsStainless steel sensors | 
        
          | 
 | 
         
          |   
 
 |  | SPECIFICATIONS | 
         
          | SP-1: 
              SP-3:Sensors: stainless steelProbe: 1/2" threaded bushing (detachable from cable)Cable: 3 meter (9.8 ft) shielded cableConnector: 4-pin 
              Sensors: stainless steelProbe: 1/4" Cable: 44" shielded cable standard (available in various lengths or open cable)Connector: 4-pin | 
         
          |  |  |  |