Bluelab Truncheon Nutrient Meter V2Displaying all the conductivity scales EC, CF, PPM 500 & PPM 700 on a single line. Each time you feed your plants it's essential to know the nutrient levels of your solution. Simply done with the Bluelab Truncheon Nutrient Meter. Flashing lights indicate your conductivity reading, which is automatically compensated with the integrated temperature sensor. Removable shroud for easy cleaning. It features a conductivity range up to 3. 6 EC, 36 CF, 1800