Description
Bluelab Truncheon Nutrient Meter – No-Calibration EC / PPM / CF Hydroponics Tester
The Bluelab Truncheon is the go-to handheld nutrient conductivity meter for hydroponic growers who demand accuracy, durability, and simplicity. With no switches or calibration required, just dip the probe and instantly read your nutrient strength via clear LED indicators.
Its waterproof and rugged design ensures it can handle life in the grow room, whether submerged or splashed. Built to last, the Truncheon is backed by a five-year warranty and trusted by commercial and home growers worldwide.
Features
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Measures EC, CF, PPM 500 (TDS), and PPM 700 scales
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Factory calibrated — no calibration needed
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Fully waterproof and submersible
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Bright LED readout for easy visibility
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Long probe reaches deep into reservoirs
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Auto on/off functionality
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Includes 3 × AA alkaline batteries
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Covered by a 5-year limited manufacturer's warranty
Why You Should Buy It
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Plug & Play Simplicity: No buttons, no fuss — just dip and read.
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Highly Durable: Built tough for real-world grow environments.
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Universal Scales: Supports multiple ppm and EC units for full flexibility.
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Time Efficient: Instant readings mean faster adjustments and more productive growing.
Lifestyle Fit
Perfect for hobbyists and commercial growers using hydroponics, aquaponics, or nutrient-rich soil systems. Whether managing a grow tent or greenhouse, this tool ensures your plants always get optimal nutrition.
FAQs
Does the Bluelab Truncheon require calibration?
No, it is factory calibrated and does not need calibration for conductivity measurements.
How do I take a reading?
Submerge the probe in your nutrient solution and wait approximately 10 seconds. The LED display will show your reading automatically.
What is its measurement range and accuracy?
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EC Range: ~0.4 to 6.0 EC
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Accuracy: ±0.1 EC, ±1 CF, ±50 ppm (500), ±70 ppm (700)
How do I clean and maintain it?
Rinse with fresh water after each use and clean monthly using a gentle cleaning solution to prevent build-up and maintain accuracy.
Is it waterproof?
Yes, it is 100% waterproof and fully submersible.
What’s included in the box?
Bluelab Truncheon Nutrient Meter, 3 × AA batteries (installed), and instruction manual.




