Precision pH Control with Dual Relay Function
The PHC-402 pH Meter Controller delivers laboratory-grade accuracy (±0.01 pH) for hydroponic systems, aquariums, and nutrient mixing. Its durable epoxy-coated electrode ensures long-term stability, while the automatic temperature compensation (ATC) guarantees reliable readings across 0–14 pH range.
Dual Relay Output for Automated Adjustments
Equip your setup with independent relays for pH up/down dosing pumps or alarms, enabling hands-free regulation. The high-relay load capacity (10A/250V AC) supports heavy-duty equipment in commercial hydroponics or aquaculture operations.
Large Backlit LCD & User-Friendly Calibration
Featuring a crisp 3-digit display with blue backlight for low-light environments, this controller includes 2-point calibration (pH 4.0/7.0 or 7.0/10.0) via screwdriver-adjustable potentiometers for pinpoint accuracy.
Industrial-Grade Housing & Wide Applications
Encased in an ABS waterproof casing (IP65-rated), it withstands humid grow rooms or outdoor fish ponds. Ideal for monitoring coco coir irrigation, reservoir tanks, or reef aquariums requiring ultra-stable water chemistry.
Plug-and-Play Compatibility
Includes a 110–240V universal power adapter and pre-installed BNC probe connector. Compatible with most industrial pH electrodes (replaceable glass sensor). Ships calibrated and ready for deployment.