Feature 1PH ORP TEMP Detector: This multifunctional water quality detector can be used to test the water pH, temperature and ORP (oxidation reduction potential). 2Convenient Control: Through the relay output power socket, you can control the pH and ORP value according to your needs. 3Good Performance: The pH temperature ORP detector has a wide measurement range and high accuracy, and is highly practical. 4Replaceable Electrodes: PH and ORP electrodes are removable and replaceable, and the fuse can be replaced easily and quickly through external replacement. 5Simple Calibration: Simply use a mini screwdriver and automatic temperature compensation to easily perform pH and ORP calibration.Item Type: Water Quality Monitoring Kit (Delivered with Liquid)Product Host Size: Approx. 16 x 9.5 x 4cm / 6.3 x 3.7 x 1.6inWeight: Approx. 1053g / 37.1ozMeasuring Range: PH: 0.00-14.00PHORP: 0-1999MVTEMP: -50-70(-58-158)Resolution: PH: 0.01PHORP: 1MVTEMP: 0.1(0.2)Accuracy: PH: 0.1PHORP: 5MVTEMP: 1.0(2)Input Resistance: 10^12Predetermined Area: PH: 3.50pH-10.50pHORP: -500mV-500mVWorking Temperature: 0-50Relay Contact: 5A 250V ACApplication: Suitable for water sources, soilless culture, aquariums, laboratories, hot springs, environmental water, swimming pools, water purification systems, etc. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Tester1 x Connection Line2 x Electrode3 x Accessories1 x User Manual