Product Description
Bluelab Truncheon Nutrient Meter – The Industry Standard EC, CF & PPM Meter
The original and industry-standard nutrient meter, trusted by growers worldwide for accurate and reliable readings.
Ensure your plants get optimal nutrients with the Bluelab Truncheon Nutrient Meter. Simply dip it in, and flashing LEDs provide precise readings automatically adjusted for temperature — displaying CF, EC, PPM 500, and PPM 700 effortlessly. Built tough and fully waterproof, the Truncheon requires no calibration and no buttons, making it the most hassle-free conductivity meter for stirring and measuring your nutrient solution simultaneously.
Key Features
No Calibration Required: Dip and read — the Truncheon is factory-set and maintains accuracy without any user calibration, ever.
Reads EC, CF, PPM 500 & PPM 700: Covers all major conductivity measurement scales used by growers worldwide.
Automatic Temperature Compensation: Flashing LEDs deliver readings automatically adjusted for solution temperature for consistent accuracy.
Fully Waterproof Construction: Robust, waterproof housing built for daily use in wet growing environments — safe to submerge during use.
Long-Format Design: Ergonomic long-body design lets you mix and measure nutrient reservoirs simultaneously.
Automatic Liquid Detection: Bright LEDs activate automatically when dipped — no buttons, no switches, no complexity.
Easy to Clean & Disinfect: Simple maintenance keeps the Truncheon performing accurately for years.
Measurement Range: 0.2–3.6 EC (standard); also available in Commercial Truncheon (0–6 EC) for high-strength nutrient solutions.
Made in New Zealand: Decades of proven performance in commercial and home growing operations worldwide.
Ideal For
Hydroponics & indoor growing nutrient management
Aquaponics & aquaculture systems
Greenhouse & commercial growing operations
Cannabis cultivation & nutrient monitoring
Coco coir, NFT, DWC & recirculating systems
Home growers & professional cultivators alike
Technical Specifications
Measurement Range: 0.2–3.6 EC | 2–36 CF | 100–1800 PPM 500 | 140–2520 PPM 700
Temperature Compensation: Automatic
Calibration: None required
Housing: Fully waterproof
Display: Bright LED scale
SKU: TRUNV2
Barcode (UPC): 9421024920012
Country of Origin: New Zealand
Weight: 15 oz
Also Available
Bluelab Commercial Truncheon Nutrient Meter — extended range (0–6 EC) for high-strength commercial nutrient solutions.
Pro tip: Pair the Bluelab Truncheon with a Bluelab pH Pen or Combo Meter for complete nutrient solution management — covering both conductivity and pH in one workflow.
Optimise nutrient levels in your reservoir
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.
Choose the right fit for your system: Bluelab Truncheon Nutrient Meter (0.2–3.6 EC) or Bluelab Commercial Truncheon Nutrient Meter (0–6 EC).
The grower’s nutrient meter of choice
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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 it’ll become your growing companion for life.
