The AquaMaster C800 Pro and AquaMaster C800 Inline Pro are professional-grade EC (electrical conductivity) and temperature meters designed for precise monitoring of nutrient solution strength in hydroponic, coco, soil and commercial growing systems. Available as a handheld portable meter or a continuous inline monitor, the C800 range delivers reliable, accurate EC readings to help growers optimise feeding schedules and maximise plant performance.

Both models are ideal for hydroponics, greenhouse cultivation, fertigation systems, reservoirs, irrigation lines and commercial agriculture. Whether you need a portable EC tester for spot checks or a permanent inline EC monitor for real-time tracking, the AquaMaster C800 range offers a dependable solution.

Choose Your Model

• C800 Pro – Handheld digital EC & temperature meter for portable testing of tanks, reservoirs and runoff.
• C800 Inline Pro – Fixed inline EC monitor for continuous measurement within irrigation systems and recirculating setups.

C800 Pro – Portable EC & Temperature Meter

The C800 Pro is a robust handheld digital EC meter designed for quick and accurate testing of nutrient solutions. Its ergonomic housing and clear digital display make it perfect for growers who regularly test reservoirs, mixing tanks and runoff.

Key Features

• Measures EC (mS/cm) and temperature
• High-accuracy digital conductivity sensor
• Easy calibration for long-term precision
• Clear, easy-to-read display
• Water-resistant durable housing
• Suitable for hydroponic nutrient solutions and irrigation water

Maintaining correct EC levels is essential for preventing overfeeding or underfeeding. The C800 Pro provides dependable readings so you can fine-tune nutrient strength for maximum yield and healthy root development.

C800 Inline Pro – Continuous Inline EC Monitor

The C800 Inline Pro is designed for growers who require constant EC monitoring within their irrigation or recirculating systems. Installed directly into pipework, it provides continuous real-time conductivity and temperature readings without the need for manual testing.

Key Features

• Continuous inline EC monitoring
• Measures EC and temperature in real time
• Ideal for recirculating hydroponic systems
• Durable industrial-grade probe
• Suitable for professional and commercial grow operations

This model is particularly valuable in large-scale grow rooms, greenhouses and commercial fertigation systems where stable nutrient strength is critical to crop consistency.

Why Monitor EC & Temperature?

Electrical conductivity (EC) indicates the concentration of dissolved fertiliser salts in your nutrient solution. Keeping EC within the correct range prevents nutrient burn, deficiencies and poor plant development. Integrated temperature monitoring ensures nutrient solution stability and supports healthy root-zone conditions.

The AquaMaster C800 range provides the accuracy and reliability required for serious growers.

Technical Specifications

Professional EC Monitoring for Serious Growers

Whether you choose the C800 Pro handheld EC meter or the C800 Inline Pro continuous EC monitor, you are investing in accurate, reliable nutrient management. Ideal for hydroponic growers, commercial horticulture, and professional cultivation systems, the AquaMaster C800 range helps you maintain precise nutrient strength for healthier plants and improved yields.

Available now from Hytec Hydroponics, your trusted UK supplier of professional hydroponic monitoring equipment and grow room essentials.

All orders are packed in plain discreet parcels with non descript labels for your personal security.

We offer the following shipping options to the mainland UK. If you live outside mainland UK please call us on +44 (0)1142 280024.

Royal Mail delivery options (mainland UK)

Royal mail tracked  £4.75 (up to 2KG only) 2-4 working days

Royal mail tracked  £3.75 (up to 2KG only) 3-5 working days

Courier  Delivery service options (mainland) Zone A Zone A+ Zone B Zone B+

Free delivery up to 25 kilos (over £99) 1-2 working days service 
Next working day  £6.75 up to 25KG 
Next working day am £9.95 over 25KG

Courier Delivery service options Zone C Zone C+ Zone D Zone D+

Next working day  £29.95 + 75P per kg over 25KG
Next working day am £35 + 75P per KG over 25KG

All packages are shipped in plain, discrete packaging. Absolutely NO information is passed to third parties.

Please note that paid for next day delivery only applies if you order before 1PM Monday to Thursday.

Our UK delivery zones: In the UK we have 4 zones. Prices and parcel delivery times vary by zone.


Tracking your consignments

Our deliveries are handled by Parcelforce or DX or Fedex depending on the weight and location.You are able to track your parcels by using your consignment number or customer reference and postcode. If using a reference number to search, please also insert the delivery postcode. You will receive an email on the day for dispatch confirming your order and tracking number, You have the option to select a delivery window or change the day of delivery by clicking the link below and manage my delivery option.


Other Services Available

Isle of Wight & isles of Scilly £5.99 extra per consignment

Timed booked delivery £15.99 extra per consignment

Long bulky items £29.99 extra per consignment (1.4m x 0.8m 0r two persons needs to carry )

We Won't Be Beaten On Price

At Hytec Horticulture we are committed to offering the best range of hydroponic products at the best possible prices. This is why we have our Price Match Promise, whereby if you find an identical product at one of our competitors for a lower price, we will match or even beat it.

In an ever-increasingly competitive marketplace, many product lines are being sold at varying prices. We want to give you the best deal so if you find any of the products we sell (or comparable products) at cheaper prices, give us a chance to get your business, save you money, and beat that price. 

Terms & Conditions

To qualify for the Price Match Promise, the product must conform to the following:

• The product in question must be identical (it should be the same brand & model and for sale with the same terms & conditions)
• The product must be held in stock by the competitor at the time you want to make the price match
• In addition to the above, we must also have the product in stock
• We must be able to verify the lower price either by the store's website, a phone call or a written quote on headed paper
• The product is not part of a promotion, sale or clearance offer
• The product must be available from a physical store that’s open to the public
• Our Price Match Promise is not available against web-only retailers, for example, eBay or Amazon, along with factory outlets, private or liquidation sales
• Typographical errors, incorrect pricing, voucher codes or additional discounts by the competitor, including their own price match offers, are excluded 

Large & Multiple Product Orders

If you want to place a large order with multiple products (for example, you're setting up a grow room from scratch and require a full setup including tent, lights, extraction, nutrients, grow media etc) then get in touch and we will aim to match, or even beat any quotes you’ve been given.