PH-803 Digital PH ORP Controller Online PH ORP Tester Water Quality Testing For
ORP: -1999~1999mV. ORP: -500~500mV. PH: 0.00~14.00PH. PH: 0.01PH. PH: ±0.1%+0.02PH. PH: 3.50~10.50PH. Made of high quality ABS material, it is durable, resistant to wear and corrosion, and has a long service life.