Lakewood Instruments
        
        
            The Remote Input RTD Is Used where Extreme Variations in Water Temperature Cause Inaccurate Conductivity Readings. The RTD Is 500 Ohm NTC. 
Can Be Used with The Models 101, 111, 151, 161, 140, 173, 175, 211, 215, 412, 420, 1400, 1575, 1575e, 2175, 2412,...