Description
Bluelab Truncheon Nutrient Meter — the industry’s toughest calibration-free EC meter for hydroponics, coco, and nutrient mixing. Built for growers who need fast, accurate conductivity readings without hassle.
Why Choose the Bluelab Truncheon?
- No buttons, no fuss: Just dip and read the flashing LED scale instantly.
- Calibration-free: Factory set — no recalibration needed.
- Automatic Temperature Compensation (ATC): Accurate across fluctuating water temps.
- Impossibly tough: Fully waterproof and durable — stir and measure with confidence.
- All major scales in one: EC, CF, ppm 500, and ppm 700.
- Easy cleaning: Removable shroud for quick maintenance.
Measurement Ranges
| EC | 0.2 – 3.6 EC |
| CF | 2 – 36 CF |
| ppm (500 scale) | 100 – 1800 ppm |
| ppm (700 scale) | 140 – 2520 ppm |
Built for Real-World Use
- Long, rigid body doubles as a nutrient stir stick for deep tanks and reservoirs.
- IP-rated waterproof: Fully submersible and easy to rinse after use.
- Bright LED display: Easy-to-see readout in low-light grow tents.
- 5-year warranty: Industry-leading reliability.
How to Use the Bluelab Truncheon
- Dip the Truncheon probe directly into your nutrient solution.
- Stir gently — the LEDs will flash to show EC/CF/ppm values instantly.
- Match the reading against your feed chart to avoid under- or over-feeding.
- Rinse in clean water after use and store dry.
Hot Topic FAQs
Do I need to calibrate the Bluelab Truncheon?
No. The Truncheon is factory-calibrated and does not need recalibration throughout its life.
Can it measure ppm as well as EC?
Yes. It displays EC, CF, ppm (500 scale), and ppm (700 scale) all in one meter.
Is it safe to leave in the tank?
No — readings are instant, but always rinse and store after use to protect the probe.
Perfect For
- Hydroponics, coco, and soil-less growing systems
- Mixing nutrients in tanks, buckets, or reservoirs
- Indoor grow tents, greenhouses, and commercial setups
Recommended Pairings
Use alongside *Bluelab pH Pens*, *Calibration Solutions*, and *Nutrient Management Tools* for complete accuracy.
The Bluelab Truncheon Nutrient Meter is the benchmark for simple, durable, and accurate nutrient strength measurement. No calibration, no hassle — just reliable data every time.
Payment & Security
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