This is a 2-in-1 water quality pH monitor, which can test the pH and EC value of water, so you know the water quality of your home in real time. This pH monitor has a large screen with a backlight for night use. Moreover, it has high detection accuracy, stable operation, and is portable. So it will be a good supervisor of water quality. Key Features 2-in-1 Monitor:This product can test the pH and EC of water. You can get two uses for one product which is very cost-effective. High Detection Accuracy:The measurement accuracy of pH is 0.1pH and the detection accuracy of EC is 2% F.S. So this high-precision monitor can provide you with reliable detection values. Wide Detection Range:The detection range of pH is 0.00-14.00pH and the detection range of EC is 0.00~19.99ms/cm. The wide detection range can be applied to more areas. Automatic Temperature Compensation:This monitor can automatically compensate for the temperature, so it will decrease the error of PH readings caused by the fluctuation of water temperature. Easy Calibration:The value of this detector is very stable without frequent adjustment. But if it is not accurate, you can easily calibrate it by simply twisting the pH and EC screws on the monitor with a small screwdriver. Interchangeable Electrodes:This monitor is equipped with BNC composite electrodes, making it easy for you to change electrodes around the world. Great Durability:The hard and sturdy ABS housing protects the internal parts well to make this monitor work for a long time. Portable:This product is very compact and lightweight. So you can easily take it outdoors to test the water quality of swimming pools or fields. Two Power Supply Options: You can choose to use four 1.5V AG13 button batteries (not included) or a 6V DC power adaptor, so this item is ideal for continuous monitoring Easy to Install:This monitor has two raised dots on the back that can be snapped onto the mounting bracket. When you put them together, the bracket can be easily hung on a fish tank or mounted on a wall. Guaranteed Customer Service:Your satisfaction is our top priority, we will make things right for you. If you are unsatisfied with our products, you can contact us and we will ensure you have a pleasant shopping experience in our store. Details LCD with Backlight: The monitor's large, clear LCD with a backlight is available for nighttime use, making it easy for you to read the test values. 3.9ft Cords: The three cords of this monitor are all 3.9ft, which are long enough to access more detection places. Removable pH Detection Electrode:The pH detection electrode is removable, which is more convenient for you to carry.Even after long-term use, you only need to replace the pH electrode, not the entire water quality monitor to save costs. Two Suction Cups: The two suction cups are set on the detection electrodes to use and then adsorbed in the fish tank to fix the two detection electrodes for water quality testing. Application It is suitable for drinking water, seawater, swimming pools, fish tanks, fields, water treatments, irrigation water, laboratories, etc. It is great for all home and professional pH testing and water quality monitoring applications including aquariums, hydroponics, swimming pools, household drinking water, spas, and so on. Specifications Model: PH-9853 Measurement Range: pH:0.00-14.00pH; EC: 0.00~19.99ms/cm Measurement Accuracy: pH: 0.1pH; EC: 2% F.S Resolution: pH: 0.01PH; EC: 0.01 ms/cm Power Supply: DC 6V or 41.5v AG-13 Button Cells(Not Included) Use: Water Quality Measurement and Analysis Plug Standard: EU Voltage: 220-230V Cable Length: 1.2m/3.9ft Temperature Compensation: 0~50 Working Temperature: 0~50 Net Weight: 0.39kg/0.86lbs Gross Weight: 0.45kg/0.99lbs Product Size: 7.5*5.5*2.8cm/2.95*2.17*1.10inch Package Size: 21*10.4*5cm/8.3*4.1*2.0inch Package Included 1* pH Monitor 1* pH Detection Electrode 1* Mounting Bracket 1* Power Cord 2* Suction Cups Notes Please do not soak the wire of the electrode in water This product does not contain batteries. You will need to purchase four 1.5v AG-13 button cells by yourself. The PH electrode is a BNCQ9 plug. Such plug electrodes can be replaced and used, but the monitor needs to be calibrated after replacement. Please allow the slight color difference caused by the shooting light and 1-3 cm error due to manual measurement, and make sure you do not mind before ordering.