The Bluelab Guardian Wi‑Fi Monitor is a professional‑grade, always‑on monitoring system designed to give growers complete visibility and control over their hydroponic nutrient solution. By continuously measuring pH, EC/PPM, and temperature, the Guardian ensures your plants remain in the optimal feeding range at all times — preventing nutrient lockout, pH swings, and environmental stress.

With built‑in Wi‑Fi connectivity, the Guardian Monitor sends real‑time data and instant alerts directly to your smartphone through the Bluelab Connect platform. Whether you're at home, at work, or away from the grow room, you can monitor your reservoir conditions and respond before problems impact your crop.

Engineered with Bluelab’s renowned accuracy and durability, the Guardian Wi‑Fi Monitor features a bright LED display, a high‑quality pH probe, and a rugged waterproof design suitable for all hydroponic systems including DWC, RDWC, NFT, aeroponics, and recirculating setups.

Key Features & Benefits

Real‑Time Wi‑Fi Monitoring & Alerts

Receive instant notifications on your phone when pH, EC, or temperature drift outside your set ranges.

Continuous 24/7 Measurement

Always‑on monitoring ensures stable nutrient conditions and eliminates guesswork.

Lab‑Quality pH Probe Included

Delivers fast, accurate readings with long‑term reliability.

Measures pH, EC/PPM, and Temperature

Three essential parameters displayed simultaneously for complete nutrient management.

Adjustable High/Low Alarms

Customise alert thresholds to match your crop’s feeding requirements.

Ideal for All Hydroponic Systems

Perfect for deep‑water culture, recirculating systems, coco drip setups, and nutrient tanks.

Energy‑Efficient & Long‑Lasting

Designed for continuous operation with minimal power consumption.

Easy Installation

Mounts directly above your reservoir with simple probe placement and plug‑and‑play setup.