Home Page Hydroponic Supplies Sitemap         Bluelab Truncheon Nutrient Meter 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. Main Features 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 Battery life minimum 1 year (or shelf life of battery) CDN Price $119.95 US Price $113.95 Shipping to Canada (CDN $):  $12.95 Shipping to US (CDN $):  $19.95 * Please note shipping price is for ground transportation. * Please note your order will be charged in CDN funds. Add to Cart   Item Description Manufacturer: BlueLab Bluelab Truncheon™ - Do’s and Don’ts Do’s · Do clean the probe face at least weekly, or even more often if you are using additives or nutrient solutions that contain oils, as these can contaminate the probe and give an inaccurate reading. · Do on occasion check the accuracy status of your Truncheon, using the Bluelab CF27.7 conductivity standard. The Bluelab Truncheon does not require calibration, as this is locked in during manufacture, but checking the status tells you that you are adequately cleaning the probe face. Always use fresh solution. · Do always replace the shroud on the probe to protect the probe face and ensure accurate readings. · Do wait 5 – 10 minutes for the reading to stabilize if the probe temperature is very different to the solution temperature and stir the probe in solution or place probe where there is good movement. · Do check batteries on occasion to check for deterioration or swelling. Don’ts · Don’t touch the probe face with your fingers or you will contaminate the probe surface. The only time you can place your fingers on the probe is when you are cleaning the probe with the liquid scourer. · Don’t wipe the probe face with a cloth or any object – only shake dry. · Don’t use rechargeable batteries · Don’t throw away your Instruction Manual – keep it in a safe place so you may refer back to it if needed. The cleaning instructions are in the manual and until you are very familiar with the procedure you should refer back to these to ensure you are carrying them out correctly.   Note: 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!