Bluelab Original Truncheon Meter Water Chillers supplying all major NPK with

supplying all major NPK with any nutrient system

so it does not step 120V up to 240V

or hard-wired junction

6 cu ft/hr BTU Rating 9

Bluelab Original Truncheon Meter Water Chillers supplying all major NPK withBluelab Original Truncheon Meter PPM, TDS, EC Tester 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. It is essential when growing with a hydroponic solution to KNOW what the strength of the solution is before feeding