Water Quality Tester 8 in 1 Online Monitoring PH Detector Hydroponic Culturewith Monitoring Analysis Meter with Wireless WIFI APP Function for Tuya US Plug 110V Item Type: Water Quality Detector Material: ABS Color: As Pictures Shown Weight: Approx. 745g / 26.3oz Range: pH: 0.00-14.00pH ORP: -2000mv ~ +2000mv EC: 0-19000us/cm 0-199.0 ms/cm CF: 0-1999.0CF TDS: 0-19990ppm 0-199.0ppt Salt: 0-199.9ppt 0%-20% S.G: 0.990-1.400 Temperature: 0-50°C (32°F~122°F) Resolution: pH: 0.01PH, ORP: 1mv EC: 1us/cm(<1999us/cm) 10us/cm (>1999us/cm) 0.1ms/cm CF: 1CF TDS: 1 ppm (<1999ppm) 10 ppm(>1999ppm) 0.1 percentage point Salt: 1ppm (<1999ppm) 10 ppm（>1999ppm） 0.1 percentage point 0.01% S.G: 0.001 Temperature: 0.1°C (0.2°F) Accuracy: pH:±0.03pH ORP: ±5mv EC, CF, TDS, SALT: ±2%F.S Temperature: ±1.0°C Battery: DC 6V Temperature Compensation: 0°C-50°C Operating Temperature: 0°C-50°C Product size: Approx. 152x80x26mm / 6.0x3.1x1.0in Application: Aquariums, Glass Fish Pond, Mining, Medical Research, Agriculture, Laboratories, Water Environment, Quality Control and Other Fields