Check the listing for details. HM Digital COM-80 + PH-80 + PH-STOR + C342 COMBO - PH/TDS/EC/PPM Meter. Condition: New. Listed at 112.99 USD. HM Digital COM-80 TDS/EC meter + PH-80 pH meter + PH-STOR storage solution + C342 ppm TDS/EC solution Meter/Solution COMBOCOM-80 COM-80: EC/TDS HydroTester SeriesThe COM-80 is easily the most advanced economically priced, reliable EC/TDS meter on the market. With its versatility and durability, it is ideal for testing applications such as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, drinking water and more.FEATURES:Measures electrical conductivity (EC), total dissolved solids (TDS). Excellent for nutrient testingFour scales: EC: µS, mS; TDS: ppm, 0.5 (NaCl) & 0.7 (442™)Automatic Temperature Compensation (ATC)Water resistantDigital Calibration (push button) to any point within the meter’s rangeAuto-off function, data-hold function and low-battery indicatorDisplay: large and easy-to-read LCD screen includes simultaneous temperature reading.Factory Calibrated: The COM-80 meter is calibrated with a 1413 µS solution.Includes a protective cap and batteriesPRODUCT DESCRIPTIONEC Range: 0 – 9990 µS; 0 – 9.9 mSTDS Range: 0 – 5000 ppm (0.5 Scale) ; 0-8560 ppm (0.7 Scale)Temperature Range: 1-80 °C; 33-176 °FResolution: 1 µS/ppm; 0.1 mSTemp. Resolution: 0.1 °C/FAccuracy: +/- 2%Power source: 3 x 1.5V button cell batteries (LR44 or equivalent is included)Dimensions: 15.3 x 3.2 x 1.8 cm (6.0 x 1.3 x 0.7 inches)Weight: 53.9g (1.9 oz)PH-80 PH-80: pH HydroTester SeriesThe PH-80 has proven to be the MOST reliable pH meter in its price range. It has become a favorite in such applications as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, drinking water and more.FEATURES:Measures pH and TemperatureOne-touch automatic digital calibrationWater resistantSimultaneous temperature displayLarge LCD displayAutomatic Temperature Compensation (ATC)Auto-off function, data-hold function and low-battery indicatorFactory Calibrated: The PH-80 meter is factory calibration to pH 7.0.Includes a translucent cap, batteries, storage solution and pH 7.0 buffer (powder)PRODUCT DESCRIPTIONpH Range: 0 – 14Temperature Range: 1-55 °C; 32-130 °FResolution: 0.1 pH; Temperature resolution is 0.1 °C/FAccuracy: +/- 0.2 pH; Temperature accuracy is +/-2%Calibration: Digital automatic calibration (one point)Minimum EC/TDS: 10 µS/5 ppmElectrode: Glass sensor and reference tube electrodesPower source: 3 x 1.5V button cell batteries (model LR44 or equivalent; included)Dimensions: 15.3 x 3.2 x 1.8 cm (6.0 x 1.3 x 0.7 inches)Weight: 53.9 g (1.9 oz)PH-STOR: pH Electrode Storage SolutionPH storage solution for HM Digital’s PH-200 / PH-80 as well as other brands of pH meters. Always make sure your sensor is kept in an electrode storage solution. If dry, refill the pH meter cap with the PH-STOR storage solution. The sponge should be moist (not soaking wet).FEATURESHigh concentrationExtends probe lifeHas fungicide to keep probe cleanConvenient sizePRODUCT DESCRIPTIONTotal volume: 60 ccContents: Specially formulated KCl solution for pH and electrodes (sensors)Bottle: Combination twist off and eyedropper style capMade in KoreaUPC: 891144000113NOT FOR CALIBRATION. To calibrate your pH meter, use a pH buffer.C-342: TDS and EC Calibration SolutionsFor optimal performance, re-calibrate your meters periodically or if testing TDS or conductivity levels in wide or different ranges.FEATURES342 ppm NaCl calibration solutionComes in lightweight HDPE plastic bottlesSealed with a tamper-evident closure