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Bluelab Truncheon Nutrient Meter
Bluelab Truncheon Nutrient Meter
Bluelab Truncheon Nutrient Meter

Bluelab Truncheon Nutrient Meter

Bluelab Truncheon Nutrient Meter

Impossibly tough, an EC meter built to last a lifetime   

Features

  • Measure up to 3.6 EC, 36 CF, 1800 ppm 500 or 2520 ppm 700
  • Robust and reliable construction for long-lasting value
  • Fully waterproof
  • Automatically detects liquids and bright LEDS indicate measurement
  • Long-format design for mixing and measuring nutrient reservoirs simultaneously
  • No calibration required and easy to clean
  • All conductivity scales included – EC, CF, PPM 500 (TDS), PPM 700
  • Industry-leading five-year warranty for peace of mind
$179.99
$179.99
Sale Sold out
  • Free Shipping in Canada & USA
  • 1-year warranty
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  • Description
  • Grow
  • Instructions
  • Shipping

Why measure conductivity?

Optimise nutrient levels

All plants need access to the correct amount of food (nutrients) so that they can grow and flourish. Over- or under-feeding your plants can result in the waste of expensive nutrient resources and plant health issues.

The simplest way to keep track of the amount of nutrients in your solution is to measure conductivity, which refers to the total ionic content (dissolved salts) in a solution. From a scientific perspective, when nutrients are added, this creates the potential for electricity to move through a solution, increasing the electrical conductivity.

By measuring and adjusting nutrient levels, you’ll ensure that your plants are getting the macro- and micro-nutrients they need for superior plant health.

The grower’s nutrient meter of choice

Robust design that’s built to last

Tried, tested and loved by growers for decades, the Bluelab Truncheon Nutrient Meter is renowned as the best conductivity meter for measuring solution. This brilliantly simple, bullet-proof nutrient meter allows you to measure and adjust nutrient levels for optimal plant performance.

The Bluelab Truncheon Nutrient Meter may have been designed for everyday use, but we guarantee that it’ll become your growing companion for life.

Best for:

1. Hydroponic Growers

Ideal for those running deep water culture (DWC), nutrient film technique (NFT), or aeroponic systems, where precise nutrient concentration is crucial.

Ensures optimal electrical conductivity (EC) levels to prevent overfeeding or underfeeding.

2. Soil & Coco Coir Gardeners

Those using soilless potting mixes (like the ones HydraGarden sells!) or coco-based substrates need to monitor nutrient strength effectively.

Helps prevent nutrient lockout and maintain a balanced feed schedule.

3. Commercial Greenhouse Growers

Large-scale growers of vegetables, flowers, and herbs who rely on automated feeding systems need an easy-to-use, durable meter.

Ensures nutrient consistency across multiple grow beds or containers.

4. Aquaponic Farmers

Farmers who integrate fish farming with hydroponics must maintain stable water quality, making EC measurement essential.

Helps balance fish waste nutrients for plant uptake.

5. Beginner to Advanced Gardeners

Anyone serious about precision feeding in their garden can benefit, even if they're just starting out.

The no-calibration-needed design makes it user-friendly for beginners, while its accuracy and durability appeal to professionals.

This tool is a must-have for serious gardeners who want to maximize plant growth, avoid nutrient issues, and optimize feeding efficiency—especially for those in hydroponics, soil-less gardening, or commercial production.

User Manual English

User Manual French

Order Processing

Orders are processed at our facility in Toronto, Ontario, Canada. 

HydraGarden orders will include a tracking number after it ships.

Shipping

Depending on the day of your order during the week, it can take up to a maximum of 7 days for your order to leave our facility.

Shipping in the Canadian Territories: Please reach out to us at sales@hydragarden.com. For shipment to remote locations, an extra fee may be applied.

Delivery

Delivery times are dependent on your proximity to our facility in Toronto, Ontario, Canada. Delivery times can vary between 1 business to 14 business days from the shipping date.

Customer Reviews

Built for growers

All of Bluelabs products are designed with growers, for growers - so you can be confident that the Bluelab Truncheon Nutrient Meter can withstand the knocks and drops that come with everyday growing. Designed and assembled in New Zealand from local and imported components.