FREE SHIPPING

Orders over $499

RARE & EXOTIC PLANTS

Hard-to-find varieties

PREMIUM QUALITY

Only the best for your grow

chevron_left chevron_right

Meters & Monitors

Accurate measurements for precise nutrient management.

Knowing what’s in your water is essential for consistent results. Our Meters & Monitors range includes handheld meters, continuous monitors, and multi-parameter testers, giving you the tools to track pH, EC, temperature, and more across all types of growing systems.

🌱 Includes pH pens, EC meters, combo meters, and inline monitors
💧 Designed for accurate, real-time water quality measurements
🧪 Suitable for hydroponics, coco, soil, and nutrient reservoirs

Grow with confidence using precision instruments from Hydro Oasis.

Read more Read less

Filters

View

Bluelab

Bluelab pH Pen

A tough, portable pH meter built to deliver accurate results and simplify nutrient management for serious growers.

Product variants

$169.99

View product

Bluelab 2.77 EC Conductivity Standard - 18mL — Reference Solution for EC & TDS Meter Calibration

Bluelab

Bluelab 2.77 EC Conductivity Standard

A professional-grade EC reference solution that ensures your Bluelab meter stays accurate and dependable after every clean.

Size

18 ml 250 ml 500 ml

Product variants

From $4.99

View product

Bluelab

Bluelab Conductivity Pen

A dependable, waterproof nutrient meter that delivers accurate EC and PPM readings for growers who value precision and ease of use.

Product variants

$159.99

View product

Back-Order

AC Infinity

AC Infinity pH Meter Pro Kit

The precision model in AC Infinity's pH line, reading to ±0.01 pH with a probe that replaces instead of retiring the meter.

Product variants

$169.99

View product

Back-Order

AC Infinity

AC Infinity pH Meter Kit

The entry meter in AC Infinity's water testing line, reading pH and temperature to ±0.1 with auto-recognition calibration against included buffers.

Product variants

$129.99

View product

Back-Order

AC Infinity

AC Infinity Hydroponic Meter PRO Kit (pH & EC)

A five-parameter water testing pen measuring pH, EC, TDS, temperature, and salinity with ±0.01 accuracy, an interchangeable probe, and a full calibration kit included.