Milwaukee T76 TDS - Waterproof Parts Per Million ( PPM ) Tester

Milwaukee Instruments T76 TDS - Waterproof Parts Per Million ( PPM ) Tester, Automatic Temperature Compensation, 1 Point Manual Calibration, & includes 6.44 ppt starter calibration package, Range: 0 to 9999 ppm (mg/L), Replacement Probe Model is MA73076 ( T 76 )