Bluelab Original Truncheon Meter

BlueLab Truncheon From New Zealand Hydroponics. The Truncheon conductivity meter is good for all around use, measuring EC, CF and PPM. The 15-inch wand is swirled in nutrient solution for an instant reading of nutrients from the blinking lights on the side. No reset button, no on/off switch, no calibration, and the instructions are on the side. EC (0.2 - 3.6), CF (2 - 36), and ppm scales. Three year warranty.