![Amazon.com: Bluelab TRUNCOMV2 Commercial Truncheon Nutrient Meter with Increased Measurement Range, Digital Conductivity (TDS, EC, ppm 500, ppm 700, CF) Tester in Water, Tool for Hydroponic System and Plant Grow : Industrial Amazon.com: Bluelab TRUNCOMV2 Commercial Truncheon Nutrient Meter with Increased Measurement Range, Digital Conductivity (TDS, EC, ppm 500, ppm 700, CF) Tester in Water, Tool for Hydroponic System and Plant Grow : Industrial](https://m.media-amazon.com/images/I/71ydlnUsNHL.jpg)
Amazon.com: Bluelab TRUNCOMV2 Commercial Truncheon Nutrient Meter with Increased Measurement Range, Digital Conductivity (TDS, EC, ppm 500, ppm 700, CF) Tester in Water, Tool for Hydroponic System and Plant Grow : Industrial
![Amazon.com: Bluelab TRUNV2 Truncheon Nutrient Meter, Digital Conductivity Tester in Water (Scales Include: EC, 500, ppm 700, CF, TDS) Tool for Hydroponic System and Indoor Plant Grow, White : Industrial & Scientific Amazon.com: Bluelab TRUNV2 Truncheon Nutrient Meter, Digital Conductivity Tester in Water (Scales Include: EC, 500, ppm 700, CF, TDS) Tool for Hydroponic System and Indoor Plant Grow, White : Industrial & Scientific](https://m.media-amazon.com/images/I/31VF9zyPq3L._AC_.jpg)
Amazon.com: Bluelab TRUNV2 Truncheon Nutrient Meter, Digital Conductivity Tester in Water (Scales Include: EC, 500, ppm 700, CF, TDS) Tool for Hydroponic System and Indoor Plant Grow, White : Industrial & Scientific
![Amazon.com: Bluelab TRUNCOMV2 Commercial Truncheon Nutrient Meter with Increased Measurement Range, Digital Conductivity (TDS, EC, ppm 500, ppm 700, CF) Tester in Water, Tool for Hydroponic System and Plant Grow : Industrial Amazon.com: Bluelab TRUNCOMV2 Commercial Truncheon Nutrient Meter with Increased Measurement Range, Digital Conductivity (TDS, EC, ppm 500, ppm 700, CF) Tester in Water, Tool for Hydroponic System and Plant Grow : Industrial](https://m.media-amazon.com/images/I/61alt6Ctu+L.jpg)
Amazon.com: Bluelab TRUNCOMV2 Commercial Truncheon Nutrient Meter with Increased Measurement Range, Digital Conductivity (TDS, EC, ppm 500, ppm 700, CF) Tester in Water, Tool for Hydroponic System and Plant Grow : Industrial
![Difference in EC numbers Bluelabs Truncheon VS Digital TDS meter. grow question by DreamCatcher - GrowDiaries Difference in EC numbers Bluelabs Truncheon VS Digital TDS meter. grow question by DreamCatcher - GrowDiaries](https://bucket.growdiaries.com/static/post/photo/45981/2646930_4a649ca631816064689d8a63711dfab6.jpg)
Difference in EC numbers Bluelabs Truncheon VS Digital TDS meter. grow question by DreamCatcher - GrowDiaries
![Bluelab TRUNV2 Truncheon Nutrient Meter, Digital Conductivity Tester Review Unboxing - EC, ppm, TDS - YouTube Bluelab TRUNV2 Truncheon Nutrient Meter, Digital Conductivity Tester Review Unboxing - EC, ppm, TDS - YouTube](https://i.ytimg.com/vi/Drg9ZlsQR04/maxresdefault.jpg)