P53PH/ORP controller, PH/ORP sensor, detailed information of PH controller:
P53 PH/ORP Controller
Matrix LCD Multi line Display
Menu prompt operation; Can be used in conjunction with multiple sensors
Multi language support with Chinese operation
Equipped with self diagnostic function and automatic alarm function
Correction method:
2-point buffer method (pH)
Insert the sensor into the buffer and press the key to start. The controller will automatically calibrate this point after the pH and temperature stabilize: repeating the process can calibrate the second point

1-point buffer method (pH)
Insert the sensor into the buffer, press the button to start, and the controller will automatically calibrate the point after the pH and temperature stabilize.

2-point sample method (pH)
Enter 2 sample values or 2 buffer values provided by the user.

One point sample method (pH and ORP)
Enter 1 sample value, 1 reference solution value, or 1 buffer solution value provided by the user.
relay:
Output 4SPDT 5A/220VAC 5A/30VDC
All four relays of work A, B, C, and D can be controlled by PH, ORP, or temperature
Function control high/low limit, set point, dead zone, timing, relay switch alarm high/low level, dead zone, relay switch
Indicate LCD display