6 in 1 Water Testing Meter - Ph PPm Temp Tds Ec Cf Easy Calibration of pH and TDS with just a Mini-screwdriver Caps on Both Sides for Storage and Protection of Electrodes Six-in-one Meter: EC, CF, _C, _F, TDS, pH Suction Cups to Attach the Electrodes onto the Inwall of the Vessel, Tank or Reservoir etc. Silicone Skin Case Could Protect the Meter from scratches