18 calibration buffer solution certified to ±0

EC/TDS readings are performed by a two-pin amperometric sensor

filters out sediment and chlorine

Chromium VI Health & Regulatory Context

and dissolves scale that's already there

Bluelab Truncheon Nutrient Meter – EC, CF, PPM 500 & PPM 700 | No Calibration | Waterproof | Made in NZ hydroponics EC 18 calibration buffer solution certifiedBluelab Truncheon Nutrient Meter The Industry Standard EC, CF & PPM Meter The original and industry standard nutrient meter, trusted by growers worldwide for accurate and reliable readings. The Bluelab Truncheon Nutrient Meter (SKU: TRUNV2) makes nutrient monitoring effortless simply dip it in, and flashing LEDs provide precise readings automatically adjusted for temperature. No calibration. No buttons. No complexity. Just accurate EC, CF, PPM 500,