The APX1-C1 is a reliable, wall or panel-mounted pH/ORP controller designed for precise water quality monitoring and control in industrial wastewater treatment, aquaculture, and chemical processing.
Provide switch output for automatic dosing control and on-site alarm triggering.
1-channel 4-20mA current output
Transmit measured pH/ORP signals to PLC or secondary display devices.
Quick pH calibration
Realize fast pH calibration by shortcut operation, no need to navigate into the main menu.
Application
The compact APX1‑C1 panel‑mount online pH/ORP meter controller is a cost‑effective option for basic water‑treatment applications. Featuring SPST relays, 4‑20mA output and quick shortcut calibration, it suits small‑scale water quality monitoring and automatic dosing control for circulating water, wastewater, swimming pools and general industrial water processes.
Applicable Scenarios
Water & Wastewater
Aquaculture
Energy & Power Generation
Food & Beverage
Agriculture & Hydroponics
Plating
As a global manufacturer of water quality testing instruments, we have consistently focused on the R&D and production of analytical equipment. Guided by our core values of professionalism, responsibility, integrity, and innovation, we create value for our customers, serve the global market, and strive for mutually beneficial partnerships and shared growth.
Do your part for the environment—protect nature and embrace a green lifestyle with help from precision water-quality testing experts. Let us join hands to protect the Earth.
Standard
Controller Model
APX1-C1
Measuring Parameter
pH/ORP
Measuring Principle
pH: Glass pH electrode (Hydrogen ion concentration index) ORP: platinum or gold electrodes (Redox potential)
Measuring Range
pH: 0~14 pH ORP: -2000mV~+2000mV Temp: -10~150℃
Resolution
pH: 0.01 pH ORP: 1 mV Temp: 0.1°C
Accuracy
pH: ±0.02 pH ORP: ±2 mV
Potential Stability
24h Drift: ≤0.05% FS, no accumulation
Potential Repeatability
±0.1%
Temperature Unit
NTCK10K (B3435), PT1000 (two-wire) PT100 (two-wire) can be customized
Temperature Compensation
Automatic or manual
Display Screen
3.2-inch graphic dot matrix LCD
Operation Panel
4-panel keys
System language
English
Calibration Method
pH: 3 points, ORP: 2 points, offset:
Power-off Protection
When powered off, the settings data are permanently retained
Menu Password
Access control management, 6-digit password setting
Quick Maintenance
Quick calibration menu, no need to enter the main menu