What is the difference between the Bluelab Truncheon and the Bluelab Commercial Truncheon?

Both items measure conductivity across all scales: EC, ppm 500, ppm 700 & CF. The original Truncheon (the page you are on) measures in tighter increments, while the Commercial Truncheon (the other page) measures a wider range (up to 6.0 EC).

The Bluelab Truncheon has been tailor designed for growers who hand-mix their nutrient solutions. It's rugged design allows you to use it as a stir stick while you mix your solution, getting instantaneous conductivity readings at the same time.

Who designed the Truncheon?

We did! This is an original proprietary design by Bluelab, built on our over 30 years of growing & hydroponics experience. Each Truncheon is built, calibrated and tested by our trained technicians in New Zealand. Please beware of imitations.

You say that this is a nutrient meter designed to last a lifetime. Can you tell me more?

The Bluelab Truncheon has been built tough to withstand the day to day rigors of growing and is virtually indestructible. It is fully waterproof, does not need to be calibrated, and only needs a simple rinse after each use.

There doesn't seem to be an "on" button. How do I turn it on?

The Bluelab truncheon was designed to work effortlessly right out of the box. It auto detects when placed in liquid, with bright LED lights showing the measurement. No calibration is required, and the Truncheon is super easy to clean & disinfect.

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Bluelab Truncheon Digital Nutrient Meter

Bluelab Truncheon Digital Nutrient Meter

Product ID: 6294104

Details

Brand
Bluelab
Item Weight
7.04 ounces
Item dimensions L x W x H
15.94 x 1.18 x
Measuring Range
2 - 36 CF 0.2
Style
Truncheon

⚡Measures EC 0.2-3.6 with precision

💧Waterproof & factory calibrated

⏱️Auto-off for battery efficiency

€ 218.12

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Description

🌱 Grow smarter, not harder — nutrient precision at your fingertips!

EFFORTLESS CALIBRATION - Factory calibrated and waterproof—no fiddling with buttons or switches, just reliable readings every time.
PRECISION NUTRIENT CONTROL - Instantly dial in your nutrient levels with ultra-accurate EC, TDS, and CF readings to maximize plant growth.
BUILT TO LAST WITH CONFIDENCE - Backed by a 5-year limited warranty and crafted by Bluelab, the trusted leader in hydroponic tech.
VERSATILE HYDROPONIC ESSENTIAL - Perfect for gardening, hydroponics, and reservoir monitoring—your all-in-one nutrient management tool.
TEMPERATURE COMPENSATED ACCURACY - Automatic Temperature Compensation ensures consistent results regardless of environmental changes.

The Bluelab Commercial Truncheon Digital Nutrient Meter is a professional-grade, waterproof device designed for precise measurement of nutrient levels in hydroponic and gardening solutions. It features a broad measurement range (EC 0.2-3.6, TDS, CF), factory calibration, automatic temperature compensation, and an auto-off function for battery conservation. Manufactured by Bluelab in New Zealand, it comes with a 5-year warranty and is ideal for growers seeking reliable, hassle-free nutrient monitoring.

Specifications

ASIN	B00348PV6S
Best Sellers Rank	#28,813 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4 in Conductivity Meters & Accessories
Brand Name	Bluelab
Customer Reviews	4.7 4.7 out of 5 stars (1,056)
Global Trade Identification Number	09421024920012
Item Dimensions	15.94 x 1.18 x 1.18 inches
Item Highlight	Digital Conductivity Tester in Water - Scales Include EC, Ppm 500, Ppm 700, CF and TDS - Tool for Hydroponics - TRUNV2
Item Type Name	Truncheon Nutrient Meter
Item Weight	7.04 ounces
Manufacturer	Bluelab
Measuring Range	2 - 36 CF, 0.2 - 3.6 EC, 140 - 2520 ppm (EC x 700), 100 - 1800 ppm (EC x 500)
Model	TRUNV2
Number of Items	1
Output Type	Digital
Part Number	716050
Specific Uses For Product	gardening, hydroponics
Style Name	Truncheon (Tighter Measurement Increments)
Unit Count	1 Count

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€ 218.12

Duties & taxes included

In stock

Sold byAmazon FranceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to France.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

View all Trustpilot reviews