Digital pH Controller – Heavy Duty Water Acidity Tester with HI/LO Action, LED Display & Electrode for Aquarium Pool

Keep water conditions precisely controlled and protect sensitive aquatic environments with dependable, easy-to-read measurements. Designed for heavy-duty and industrial applications, this advanced controller delivers fast response and straightforward two-point calibration for convenient everyday operation. Its large LED display makes water acidity testing clear and accessible, while optional HI/LO action supports more controlled system management. Built for reliable aquarium pH monitoring, it combines a durable re-engineered body with a compact, lightweight design for flexible installation.

Key Features
• Optional HI/LO action and protection dead band functionality support convenient pH control for demanding applications.
• Large 4-digit LED display provides clear readings with a measuring resolution of 0.01 pH.
• Two-point calibration and fast response make routine setup, testing, and adjustments easier.
• Wall-mount or container-hanging installation provides flexible positioning for aquariums, pools, and water systems.

Why Choose Our Digital pH Controller?
Unlike basic handheld testers that only provide readings, this controller combines continuous pH measurement with optional HI/LO action for greater control over water management. Its heavy-duty construction, detachable electrode, large LED display, and flexible mounting design make it suitable for demanding environments. The included holder and EU power cord provide added convenience for installation and regular operation.

Perfect For
Ideal for aquarium keepers, pool maintenance, hydroponic systems, water treatment applications, laboratories, industrial environments, and other settings requiring regular acidity monitoring. It is especially useful for users who need a stationary pH monitoring solution with clear readings and optional control functionality.

Product Specifications
• Measuring Range: 0.00–14.00 pH
• Resolution: 0.01 pH
• Accuracy: ±0.1% + 2 digits
• Input Resistance: 10 Ω
• Set Range: 3.50–10.50 pH
• Voltage Options: 110V / 220V
• Calibration: Two-point
• Display: 4-digit LED
• Operating Temp.: 32–122°F
• Ambient Humidity: ≤90% RH
• Power Requirement: AC 110V ±10%, 60Hz / AC 220V ±10%, 50Hz
• Power Consumption: 2W
• Relay Contact: 5A at AC 110V / 220V
• Output Voltage: Same as supply voltage
• Included: 1 digital controller, 1 detachable pH electrode, 1 English manual, 1 controller holder, 1 power cord
• Battery: Not included

Maintain more consistent water conditions with the Digital pH Controller. Its clear digital readings, durable construction, and convenient control capabilities make it a practical addition to aquarium, pool, hydroponic, and professional water-monitoring setups.