iMeshbean® Digital PH Tester Meter Pen + TDS Tester Aquarium Pool Hydroponic Water Monitor 0-9999 PPM with Free Batteries USA Seller

Package includes: 1 x Digital pH meter; 1 x TDS Meter Tester; 2 × Calibration Buffer Powder； 1 x Calibration Adjustment screwdriver; 5 x Batteries; 2 x Carrying cases; 2 x User manualBrand: iMeshbea..