Apera Instruments, AI3729, PH60-HF Handheld pH Meter Tester Kit for Liquids Containing Strong Acid or Hydrofluoric Acid with LabSen 835 ATC pH ElectrodeAI3729 Includes Only:User ManualLabSen 835 pH ElectrodePH60 Meter BodyCalPod Solution OrganizerpH 1.68 SolutionpH 7.00 SolutionpH 10.01 Solution3M Soaking KCL SolutionProtective capFeatures:Portability + Reliability -- The top-rated pH tester is now paired with the Swiss LabSen 835 pH/temp. electrode, allowing you to effortlessly take lab-grade pH measurement for strong acidic solutions or HF-containing solutions wherever you go.Swiss Sensor Tech -- Crafted with Swiss sensor technology and premium materials, the LabSen electrode's specialized HF membrane is resistant to hydrofluoric corrosion and minimizes acidic error.Measuring HF -- LabSen 835 pH electrode is capable of measuring solution containing HF acid for up to 1000 times. (measurement time<1 min, and HF concentration should be less than 0.1mol/L or 2000 ppm)Robust Reference System -- LabSen 835 employs a Silver Ion Trap Reference System along with Open junction and polymer electrolyte, outperforming ordinary Ag/AgCl systems by maintaining reference potential stability over time and eliminates junction clogs, which significantly extends the electrode's service life.Intelligent Meter Body -- The water-resistant meter body is featured with intelligent functions such as Automatic Calibration, Auto. Temperature Compensation, Reading Alarm Settings, Automatic Reading Lock, and more to meet your precision needs.Discover the next level of precision, reliability, and portability with top-rated professional PH60 tester, now paired with the Swiss LabSen 835 pH/temp. electrode. This powerful combination revolutionizes pH measurement, especially in water solutions containing strong acid or hydrofluoric acid. The electrode also works well in general water solutions. Elevate your pH measurement experience with comprehensive test kit that leaves no detail unaddressed. This all-inclusive kit not only includes ready-to-use calibration buffer solutions and soaking solution but also features the Apera CalPod Solution Organizer for optimizing your calibration process. All components are conveniently housed in a rugged carrying case, ensuring that you can effortlessly perform reliable pH measurements and calibrations wherever you go.