The world's favourite nutrient meter! With its super tough, high quality, fully waterproof design, no calibration required, daylight readable blue LED's and no on/off buttons to worry about, the Bluelab Truncheon^®Nutrient Meter has proven itself as the world's favourite nutrient meter. 

It is essential when growing with a hydroponic solution to KNOW what the strength of the solution is before feeding your plants AND while they are growing. This is easy if you use the Bluelab Truncheon! To take a reading of your solution - simply place the probe head into the solution, wait for it to reach the same temperature of your nutrient. Remove from the solution and place back in to take the reading as indicated by the flashing lights. Rinse the probe after use in fresh water and clean every 30 days to ensure the Truncheon Nutrient Meter remains accurate.

Calibration of the Meter is not required and it's great for stirring your nutrient tank too!

Main Features

• Robust and reliable construction for long-lasting value
• Fully waterproof; splash, submerge or sink - we've got you covered
• Automatically detects liquids and bright LEDS indicate measurement for brilliantly simple functionality
• Long-format design for mixing and measuring nutrient reservoirs simultaneously
• No calibration required and easy to clean and disinfect
• All conductivity scales included – EC, CF, PPM 500 (TDS), PPM 700
• Industry-leading five-year warranty for peace of mind
• Packaging may vary 

5 Year Bluelab Guarantee 

Five-year guarantee for the Bluelab Truncheon Nutrient Meter (proof of purchase is required). Find out more about our product warranties.

Suitable Applications

• Hydroponics
• Horticulture
• Floriculture
• Pools

Why measure conductivity?

Optimise nutrient levels

 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.

The grower’s nutrient meter of choice

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 we guarantee that it’ll become your growing companion for life.

Designed in New Zealand with growers in mind

All our products are designed with growers, for growers - so you can be confident that the Bluelab Truncheon Nutrient Meter can withstand the knocks and drops that come with everyday growing.

Team up with the Bluelab pH Pen

Cover all the plant health fundamentals

As a grower, your solution’s pH (potential Hydrogen) is the most critical fundamental measurement to track. It plays a crucial role in making nutrients soluble in water so that they can be accessed by your plants.

The Bluelab pH Pen is an affordable and compact handheld solution for measuring pH and temperature on the go.

When you combine this pen with Bluelab’s Truncheon Nutrient Meter, you’ll be able to measure conductivity, temperature and pH, which not only enables you to actively manage your nutrient levels but also ensures that your plants have access to the food they need. Start tracking the fundamentals today.

BLUELAB TRUNCHEON MANUAL

BLUELAB TRUNCHEON DATASHEET

BLUELAB TRUNCHEON SPECS