SKU: 67036

Bluelab TDS Truncheon

Vendor Bluelab®
Regular price $169.95
Sale price $169.95 Regular price $219.95
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Why Bluelab TDS Truncheon!

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.


The Bluelab TDS Truncheon is a must-have tool for any grower that wants to measure TDS accurately. This conductivity meter is a handheld device that measures the electrical conductivity of a solution in parts per million (ppm) or in millisiemens per centimeter (mS/cm). The readings from the TDS Truncheon can be used to determine the total dissolved solids (TDS) in the solution being measured.


The Bluelab TDS Truncheon was designed for commercial growers and is now widely used by hobbyists as well. The TDS Truncheon is made by Bluelab, a New Zealand-based company that has been developing quality measuring equipment for over 30 years.


One of the biggest advantages of the TDS Truncheon is its simplicity. It is a very straightforward device that requires no calibration, minimal maintenance, and is very user-friendly. Simply turn it on, dip it in the solution you want to measure, and the device will give you an accurate reading in seconds.


Another advantage of the Bluelab TDS Truncheon is its accuracy. The device has a range of 0-9999 ppm or 0-9999 mS/cm and an accuracy of +/- 2%. The meter is also temperature-compensated, which means that the readings will be accurate even if the temperature of the solution being measured changes.


The device is made from high-quality, durable materials and is backed by a 5-year warranty. The TDS Truncheon also comes with a protective cover that doubles as a calibration solution container, making it easy to carry and store.


Overall, the Bluelab TDS Truncheon is an excellent tool for anyone that wants accurate TDS measurements. It is simple, accurate, and reliable. Whether you are a commercial grower or a hobbyist, the TDS Truncheon is a must-have tool for your arsenal.


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 for 1-2 minutes 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 once a week 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!

What is Bluelab TDS Truncheon?

  • EC (0.2 - 3.6), CF (2 - 36) and ppm scales (TDS and 700 scale)
  • Fully waterproof
  • No calibration required
  • Auto sense on and off
  • No external switches or adjustable buttons