The best-selling hydroponics EC Meter in the world. Growers prefer the Bluelab Truncheon because it's easy to use, easy to read, extremely accurate and best of all its reliable. Use it to quickly and accurately test the conductivity levels (EC, CF & PPM) of your nutrient solution. Features: EC, CF and PPM scales Fully waterproof Factory calibrated Auto turn on and off Battery life minimum of one year (or shelf life of battery) No external switches or adjustment knobs EC (0.2 - 3.6), CF (2 - 36) and ppm scales (TDS and 700 scale) Uses 3 x AA alkaline batteries (included) Testing is simple; Dip the end of the Truncheon into the nutrient solution and wait for a minute or two for the Truncheon's probe to reach the same temperature as the nutrient. Remove the Truncheon from the solution, and then dip back in again to take the reading. The flashing lights along the side represent the value of the solution. It doesn't get any easier. Don't forget to rinse under fresh water after use, and clean once a week.
