Display Type : DIGITALWith Backlight Or Not : NOModel Number : PHT-026 meterCertification : CEMeasurement range1 : 0.00-14.00Measurement range2 : 0.00-19.99 ECMeasurement range3 : 10-19990 ppmMeasurement range4 : 0.0-199 CFResolution pH : 0.01pHResolution EC : 0.01ECResolution TDS : 10ppmResolution CF : 0.1CFOperating Temperature: : 0 ~ 50 CAutomatic Temperature Compensation : 0 ~ 50 CMulti-parameter PHT-026 water quality monitor Ph Meter TDS Temp Conductivity Detector Aquarium Online Measurement Analysis Tool 40%offFetures:Six-in-one Meter: EC, CF, , F, TDS, pH;Easy Calibration of pH and TDS with just a Mini-screwdriver;Automatic Temperature Compensation (without this, pH reading will differ as the temperature varies);Large, Triple Level Display;Caps on Both Sides for Storage and Protection of Electrodes;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;CE Certificated to Offer Safer and Precise Measurement.Specifications:Measurement range:pH: 0.00~14.00EC: 0.00 19.99ECTDS:10 19990ppmCF: 0.0 199CFTemp: -50 ~70Resolution:pH: 0.01 ;EC0.01ECTDS10 ppmCF: 0.1CFTemp: 0.1 (0.2 )Accuracy:pH: 0.1pHEC/TDS/CF: 2 FSOperating Temp: 0 ~ 50 (32F ~ 122F),RH