Pool and electronic spa tester - safedip - The electronic tester will control pH, chlorine, salinity, TDS, ORP and temperature through its electrode system. It quickly controls water quality. Its LED display shows the results directly. It consists of a memory function that will allow you to compare with your previous results. Advantages: No strips LED display system Fast calibration Measurement storage Features: LED display Measuring tester: pH, chlorine, salinity, TDS, ORP and temperature 2 batteries included Dimension: 27.9 x 12.7 x 3.8 Item number: SOL - 470 - 0001 Packaging: 1 x Electronic pool and spa tester - safedip Delivered in its original packaging