Aqua Master Combo Meter H600 Pro £219.99 Original price was: £219.99.£194.99Current price is: £194.99. Inc VAT
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Aqua Master Substrate EC/Temp E300 Pro
£149.99 Original price was: £149.99.£124.99Current price is: £124.99. Inc VAT
A specialist EC and temperature meter for coco coir, soil and moist substrates. Features a high-quality electrode, calibration indicator and precise readings.
SKU: AME300 Categories: EC & pH Control, Grow Room Tools Tags: ec meter, substrate reader, substrate sensor
Description
Aqua Master Substrate EC/Temp E300 Pro
The Aqua Master Substrate EC/Temp E300 Pro is a professional testing solution designed to accurately measure electrical conductivity (EC) and temperature in coco coir, compost and other moist, soft substrates, as well as liquids. It’s ideal for growers who need precise nutrient strength readings directly from their growing media.
The E300 Pro features a modern, robust housing with intuitive, easy-to-operate buttons, making it simple to use in both commercial and home growing environments. At the heart of the meter is a high-quality EC electrode, specifically engineered for substrate testing where standard EC meters are unsuitable. The unit is supplied fully calibrated and ready for immediate use, with batteries included.
This upgraded Pro model now includes a calibration indicator and displays results to two decimal places, providing enhanced accuracy and confidence when monitoring nutrient levels. The electrode connects via a secure PIN connector, ensuring reliable performance and consistent readings over time.
Whether you’re managing coco coir systems, soil-based grows or damp growing media, the Aqua Master E300 Pro delivers dependable EC and temperature measurements. For best performance, ensure substrates are sufficiently moist and clean the electrode after each use to maintain accuracy.
Key Benefits
Accurate EC and temperature measurement in substrates and liquids
Ideal for coco coir, soil & moist growing media
High-quality EC electrode designed for substrate testing
Fully calibrated and ready to use
Calibration indicator for ongoing accuracy
Readings displayed to two decimal places
Robust housing with simple controls
Powered by standard AAA batteries
About brand
Aqua Master – Precision Water Testing for Hydroponics, Aquatics & Indoor Gardening
Aqua Master is a trusted global brand specialising in high-accuracy water testing instruments for hydroponics, horticulture, aquaculture and laboratory environments. Over time, the brand has become renowned for its reliable EC meters, pH meters, temperature probes and nutrient monitoring tools. As a result, growers can maintain perfect nutrient balance and water quality throughout every stage of plant development — from seedling to harvest.
Whether you're a UK indoor grower, commercial cultivator or hobbyist, Aqua Master delivers the precision needed to maximise plant health, nutrient uptake and crop yields. In particular, their meters perform exceptionally well in hydroponic systems, coco coir setups, NFT systems, DWC reservoirs and soil-based grows.
Why Choose Aqua Master for Hydroponics?
In hydroponics and indoor gardening, accurate nutrient and pH control is essential. Even small imbalances can result in nutrient lockout, stunted growth, deficiencies and reduced yields. Aqua Master meters are engineered to provide fast, dependable readings, helping growers stay in full control of their growing environment.
Their instruments are designed with:
✔ High-grade sensors for superior accuracy
✔ Waterproof and dust-resistant housings
✔ Automatic temperature compensation (ATC)
✔ Easy-to-read LCD displays
✔ Replaceable probes and long service life
Whether you're running a home grow tent or a commercial-scale hydroponic operation, Aqua Master tools allow you to fine-tune nutrient solutions with confidence.
Aqua Master Product Range
🔹 pH Meters
Maintain optimal root-zone conditions with Aqua Master’s highly accurate pH testers, ideal for hydroponic reservoirs, soil runoff testing and nutrient solution preparation. Fast calibration and stable readings make them perfect for both beginners and professional growers.
🔹 EC & TDS Meters
Monitor nutrient strength precisely with Aqua Master’s EC and ppm meters, ensuring your plants receive the correct feed levels throughout their growth cycle — from propagation through flowering.
🔹 Combo Meters
All-in-one devices measuring pH, EC and temperature in a single unit — perfect for growers looking for streamlined nutrient monitoring without sacrificing accuracy.
🔹 Temperature & Water Quality Instruments
From reservoir thermometers to conductivity testers, Aqua Master provides a complete range of water analysis tools essential for hydroponics, aquaponics and indoor cultivation systems.
Designed for UK Growers & Professional Environments
Aqua Master meters are widely used across the UK, and Netherlands hydroponics industry thanks to their:
Compatibility with UK nutrient brands
Reliable performance in cold grow rooms and warm reservoirs
Calibration solutions available locally
Long-lasting build quality for commercial workloads
Whether you're growing in loft spaces, spare rooms, basements, greenhouses or warehouse environments, Aqua Master provides the data accuracy required for consistent success.
Benefits of Using Aqua Master Equipment
- Improved nutrient uptake and plant growth
- Reduced risk of pH shock and nutrient lockout
- Optimised fertiliser efficiency
- Higher yields and crop consistency
- Faster diagnosis of plant stress issues
Accurate monitoring is one of the most powerful tools in any grower’s arsenal — and Aqua Master delivers professional-grade precision without complexity.
Ideal Applications
Hydroponics & aeroponics systems
Coco coir & soil growing
Aquaponics setups
Commercial horticulture
- Aquarium keeping
Propagation & cloning environments
Research and laboratory testing
Why Buy Aqua Master from Us?
As a specialist UK indoor gardening retailer, we stock the full range of Aqua Master hydroponic meters and calibration solutions, offering:
✔ Fast UK delivery
✔ Competitive pricing
✔ Expert grower support
✔ Genuine manufacturer warranties
✔ After-sales assistance
Whether you're upgrading your grow room equipment or building a complete hydroponic system from scratch, Aqua Master instruments provide the accuracy and reliability you need to succeed.
Shipping & Delivery


DELIVERY TIMEFRAME
We aim to process and dispatch all orders within 2 working days of being placed. Wherever possible, parcels are sent on a next working day service to ensure you receive them quickly and reliably.
When your order is dispatched, you will receive a confirmation email with tracking information so you can closely monitor your delivery every step of the way.
Please Note: Delivery times may slightly vary during busy periods, or due to courier service disruptions. Rest assured, we always do our best to get your order to you promptly.
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