Dirty probe head. The carbons on the probe head are easily contaminated with oils and greases, for example, from fertilisers and organic nutrients, and even your fingers. Try not to touch the probe head for this reason. Your plants deserve the perfect diet to flourish. Maintaining the right balance of nutrients is the secret to their success. Overfeeding or underfeeding can waste valuable resources and lead to health problems for your plants. The Power of Conductivity Growers everywhere regard the Bluelab Truncheon CF/EC/PPM as the best nutrient strength meter you can get. The Bluelab V2 Truncheon measures the electrical conductivity of your nutrient solution via electrodes on the bottom end. The Bluelab V2 Truncheon then displays the measurement on a row of LED's calibrated in all the popular scales (CF, EC and PPM). The electrodes are very high quality and will last a long time and are protected by a slotted plastic shroud.

Bluelab E.C. Truncheon the go to electrical conductivity meter for the professional hydroponic grower and hobbyist alike. Bluelabs reputation for quality precision measurement instruments for horticulture is well known and respected.

Team up with the Bluelab pH Pen

Wait for the probe to come to the same temperature as the solution. Keep the probe in the solution for 1-2 minutes. Unfortunately the answer is no, the truncheon is purely for measuring EC/CF. The Bluelab pH pen is sold seperately, you can find this here. Test in 2.77 EC Conductivity Standard Solution to ensure cleaning was adequate. Place the probe in the solution and wait for the reading to stabilise to a consistent value. The Bluelab Truncheon measures the electrical conductivity of your nutrient solution through electrodes on the bottom end. The electrode reads the water, compensates for the water temperature (very important for an accurate reading), then the measurement is displayed in a simple, easy to read format via the row of LED’s along the shaft. The Truncheon displays readings in every form of measurement; EC, CF, PPM and TDS.

There should be no beads of water on the probe face. If beading is present repeat steps 2and 3. 5: Refit the shroud and test The nutrient solution can now adjusted to bring it to the correct strength by adding more nutrient or by diluting with water as necessary. Always rinse the probes with fresh water after every use and clean them once a week with an appropriate cleaner such as the Bluelab Conductivity Probe Cleaning Kit to maintain accuracy, reliability and probe-life. The Bluelab Truncheon CF/EC/PPM Meter'stough, completely waterproof and famously reliable, making it the favourite nutrient strength meter of growers for years. The Bluelab Truncheon gives you an easy to read, incredibly accurate view of your nutrient strength, so you can make sure your plants are getting exactly what they need, taking you from hobbist to professional. It's no wonder that most growers choose to use a Bluelab Truncheon. How the Bluelab V2 Truncheon CF/EC/PPM Meter works:

Product overview and how to take your first reading

Possibly the simplest nutrient meter to use. No buttons just immerse the probe in your nutrient solution, the meter will automatically turn on and display a reading along the shaft. Remove the meter from the water and it will turn off. It really is that easy! The display LED's are a bright blue which makes them easy to read, even in daylight. The Bluelab V2 Truncheon automatically switches itself on when dipped into liquid and switches itself off when it is removed from the liquid to save battery-life. The Bluelab V2 Truncheon is pre-calibrated at the factory and has temperature compensation to ensure accuracy. The whole Truncheon is made of a super-tough, waterproof plastic and it's shape means that it can even be used to stir your nutrient solution with. Very highly recommended. The Bluelab Truncheon is the most popular nutrient meter on the market, having proven itself indispensable to hydroponic enthusiasts everywhere. The Bluelab nutrient Truncheon is very easy to use, all you do is place the probe head in the solution and the truncheon lights up to show your nutrient strength in EC or PPM. The Bluelab Nutrient Truncheon may seem a bit expensive but you're paying for the bullet-proof reliability that Bluelabs provide, they have so much confidence in the quality of their product that they offer a 5-year guarantee.