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                          pH Meter

                          A pH meter/controller is an instrument used to test and monitor the pH value of a solution. It works by the principle of primary battery, of which the electromotive force between two electrodes is based on the Nernst Law. Electromotive force of primary battery is affected by both property of electrodes and hydrogen ion concentration in the solution. There is a correspondence relationship between the electromotive force and hydrogen ion concentration of the primary battery, namely negative logarithm of the hydrogen ion concentration is equal to the pH value.
                          PH meter is an ordinary analytic instrument and is widely used in agriculture, environmental protection, industry and other fields. PH meters can be categorized as pen type pH meter, benchtop pH meter, handheld pH meter, laboratory pH meter and industrial online pH meter.

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                          Digital pH Meter, Online Test pH/ORP of Water/Food

                          $205.68
                          SKU: ATO-PHCON-PH4
                          Digital pH/ORP meter can be used with various pH electrodes or ORP electrodes to realize online testing and monitoring of pH (0~14) / ORP (-1000~1000mV) / temperature (0~100℃/32~212℉) of sewage, corrosive solution, liquid medicine, beer, drinking water, food, etc. Online pH meter can be connected to digital panel meter/VFD/PLC/recorder (4-20mA output), or connected to computer for remote monitoring and recording (RS485 communication). Digital pH meter can also be connected with alarm relays and solenoid valves to form a simple pH process control system.

                          pH Controller, Transmit pH/ORP, Water/Food Process

                          $227.62
                          SKU: ATO-PHCON-PH6
                          pH/ORP controller can be connected with alarm relays and solenoid valves to form a simple pH/ORP process control system. Digital pH meter can be used with various pH electrodes or ORP electrodes to realize online continuous testing and monitoring of the pH (0~14) / ORP (-1000~1000mV) / temperature (-10~+130℃/14~266℉) of sewage, corrosive solution, liquid medicine, beer, drinking water, food, high temperature sterilization occasions, etc. pH controller transmits standard output signal 4-20mA to digital panel meter/VFD/PLC/recorder, or RS485 signal to computer for remote monitoring and recording.

                          Digital pH/ORP Meter for Water Testing

                          $462.43
                          SKU: ATO-PHCON-PH7
                          Digital pH/ORP meter is a wall-mounted pH/ORP controller with protection class IP65. The pH/ORP meter can be used in various severe environment. It is used to test and monitor the pH (0~14) / ORP (-1000~1000mV) / temperature (-10~+130℃/14~266℉) of sewage, corrosive solution, liquid medicine, beer, drinking water, food, etc. The pH controller transmits standard output signal 4-20mA to digital panel meter/VFD/PLC/recorder, or RS485 signal to computer for remote monitoring and recording.

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