---
product_id: 6294104
title: "TRUNV2 Truncheon Nutrient Meter, Digital Conductivity Tester in Water (Scales Include: EC, 500, ppm 700, CF, TDS) Tool for Hydroponic System and Indoor Plant Grow, White"
brand: "bluelab"
price: "€ 216.39"
currency: EUR
in_stock: true
reviews_count: 13
category: "Bluelab"
url: https://www.desertcart.hr/products/6294104-trunv2-truncheon-nutrient-meter-digital-conductivity-tester-in-water-scales
store_origin: HR
region: Croatia
---

# Measures EC 0.2-3.6 Waterproof & sealed design 3x AA batteries, auto on/off TRUNV2 Truncheon Nutrient Meter, Digital Conductivity Tester in Water (Scales Include: EC, 500, ppm 700, CF, TDS) Tool for Hydroponic System and Indoor Plant Grow, White

**Brand:** bluelab
**Price:** € 216.39
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** TRUNV2 Truncheon Nutrient Meter, Digital Conductivity Tester in Water (Scales Include: EC, 500, ppm 700, CF, TDS) Tool for Hydroponic System and Indoor Plant Grow, White by bluelab
- **How much does it cost?** € 216.39 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/6294104-trunv2-truncheon-nutrient-meter-digital-conductivity-tester-in-water-scales)

## Best For

- bluelab enthusiasts

## Why This Product

- Trusted bluelab brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Operation:** No buttons or switches—auto power on/off saves battery and simplifies use.
- • **Robust Waterproof Build:** Fully sealed with O-ring and silicone for worry-free use even if dropped in water.
- • **Trusted Industry Leader:** Made in New Zealand by Bluelab with a 5-year warranty for reliable, long-term performance.
- • **Precision Nutrient Control:** Instantly monitor and adjust nutrient levels (TDS) for optimal plant growth.
- • **Auto Temperature Compensation:** Consistent readings regardless of temperature fluctuations in your grow environment.

## Overview

The Bluelab TRUNV2 Truncheon Nutrient Meter is a rugged, waterproof digital conductivity tester designed for hydroponic and indoor plant growers. It measures EC, CF, and ppm levels with automatic temperature compensation and requires no calibration. Powered by 3 AA batteries with auto on/off functionality, it offers intuitive LED indicators for quick nutrient monitoring. Manufactured by Bluelab in New Zealand, it comes with a 5-year warranty, making it a trusted tool for maximizing plant health and yield.

## Description

desertcart.com: Bluelab TRUNV2 Truncheon Nutrient Meter, Digital Conductivity Tester in Water (Scales Include: EC, 500, ppm 700, CF, TDS) Tool for Hydroponic System and Indoor Plant Grow, White : Industrial & Scientific

Review: Very sturdy. Well worth the price! - The meter feels solid and well constructed. The plastic is thick and study (no creaking or flimsiness). The battery compartment has a proper O-ring and the rest of the unit looks to be sealed with glue/silicone. Nice Japanese OEM batteries are included so it's ready to go out of the box. It's a bit larger than other meters, but that makes it easier to handle. The lanyard very convenient when taking direct measurements inside larger reservoirs such as 50 gallon drums. Even if you do drop this meter into your reservoir it'll be fine because it's fully waterproof. This meter does not provide exact numeric measurements on a display like some others, but the LED indicators are easy to read and intuitive. If one indicator blinks, then your nutrient concentration is at that level. If two LEDs alternate blinking then the measurement is about halfway between those values. The precision should be enough for any hydroponics system. The meter turns on automatically when it detects water above the minimum PPM and turns off automatically after displaying the reading for a while. There are no controls on the meter. It doesn't turn on when immersed in common tap water, so accidental battery drain isn't a problem. The detector element itself is also very sturdy and easy to clean. I usually rinse it off every few measurements and store it in the protective case. Buy it!
Review: Great for stirring too - Its nice out of the box. I got accurate reading from this right away comparing it to two separate meters. I always wanted one and I'm glad I got it now. I still don't know if this is something you would only wanna use with large volumes or if its the perfect grow accessory for everybody. Its already better than a pen just for the fact that you can ditch one for button battery device as this uses a battery's but I can't remember if its triple or double.

## Features

- Quickly monitor for precise up and down adjustment of your nutrient (TDS) level in solution to maximize your grow and ensure plants get the balanced feed they need; Measures while mixing nutrients in your tank
- Measurement Range: 2 to 36 CF, 0.2 to 3.6 EC, 140 to 2520 ppm (EC x 700), 100 to 1800 ppm (EC x 500); General uses include gardening, hydroponics growing tent and reservoir
- Comes factory calibrated (no calibration required) and is fully waterproof; Automatic Temperature Compensation provides consistent reading regardless of any fluctuations in temperature
- Combine with pH tester and other meters for full garden nutrients monitoring in water; Other features: Auto off function, no buttons or switches; KIT INCLUDES: AA batteries, Truncheon case, probe care kit sold separately
- Made in New Zealand and manufactured by Bluelab, the industry leader in hydroponic testing equipment, built for growers; 5-Year Limited Warranty with proof of purchase

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00348PV6S |
| Batteries | 3 AA batteries required. |
| Best Sellers Rank | #31,631 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #11 in Conductivity Meters & Accessories |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,369) |
| Is Discontinued By Manufacturer | No |
| Item Weight | 7 ounces |
| Item model number | TRUNV2 |
| Manufacturer | Bluelab Corporation Limited - Import (NZ) |
| Product Dimensions | 15.94 x 1.18 x 1.18 inches |

## Images

![TRUNV2 Truncheon Nutrient Meter, Digital Conductivity Tester in Water (Scales Include: EC, 500, ppm 700, CF, TDS) Tool for Hydroponic System and Indoor Plant Grow, White - Image 1](https://m.media-amazon.com/images/I/71uyE6Wb38L.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: What is the difference between the Bluelab Truncheon and the Bluelab Commercial Truncheon?**
A: 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 option) measures a wider range, up to 6.0 EC.

**Q: Who is this for?**
A: The Bluelab Truncheon is designed for growers who use batch tanks and/or who hand-mix their nutrients. 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.

**Q: Who designed the Truncheon?**
A: 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.

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

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very sturdy. Well worth the price!
*by P***P on October 23, 2015*

The meter feels solid and well constructed. The plastic is thick and study (no creaking or flimsiness). The battery compartment has a proper O-ring and the rest of the unit looks to be sealed with glue/silicone. Nice Japanese OEM batteries are included so it's ready to go out of the box. It's a bit larger than other meters, but that makes it easier to handle. The lanyard very convenient when taking direct measurements inside larger reservoirs such as 50 gallon drums. Even if you do drop this meter into your reservoir it'll be fine because it's fully waterproof. This meter does not provide exact numeric measurements on a display like some others, but the LED indicators are easy to read and intuitive. If one indicator blinks, then your nutrient concentration is at that level. If two LEDs alternate blinking then the measurement is about halfway between those values. The precision should be enough for any hydroponics system. The meter turns on automatically when it detects water above the minimum PPM and turns off automatically after displaying the reading for a while. There are no controls on the meter. It doesn't turn on when immersed in common tap water, so accidental battery drain isn't a problem. The detector element itself is also very sturdy and easy to clean. I usually rinse it off every few measurements and store it in the protective case. Buy it!

### ⭐⭐⭐⭐⭐ Great for stirring too
*by A***G on August 16, 2025*

Its nice out of the box. I got accurate reading from this right away comparing it to two separate meters. I always wanted one and I'm glad I got it now. I still don't know if this is something you would only wanna use with large volumes or if its the perfect grow accessory for everybody. Its already better than a pen just for the fact that you can ditch one for button battery device as this uses a battery's but I can't remember if its triple or double.

### ⭐⭐⭐⭐⭐ Works Great
*by B***N on January 7, 2026*

Works awesome, so easy to use and super accurate

## Frequently Bought Together

- Bluelab Truncheon Nutrient Meter, Digital Conductivity Tester in Water (EC, 500, ppm 700, CF, TDS) Tool for Hydroponic System and Indoor Plant Grow
- Bluelab pH Pen Meter and Probe Care Kit pH with Calibration Supplies, Storage Solution & Brush, Reliable Digital Tester for pH, Temperature in Growing Solutions, Optimal Plant Health and Yield
- General Hydroponics pH Control Kit For A Balanced Nutrient Solution

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-11*