Aquamira recommends replacing the BLU Line Filter every 90 days during continuous use

EC sensors are more robust but can still be affected by residue buildup

Waterproof IP65 rating protects against spills and moisture

01 Calibration Buffer Solution - 20 mL

forcing the entire contents up through the filter and out the straw

Milwaukee SE510 Lab-Grade EC/TDS Probe with DIN Connector for MW301 & MW401 Meters stainless steel water bottle Aquamira recommends replacing the BLUGenuine Milwaukee SE510 Lab Grade EC TDS Probe Keep your MW301 and MW401 PRO Conductivity Meters performing at lab grade accuracy with this precision engineered replacement probe. The SE510 combines conductivity and TDS measurement in a single, durable probe designed for professional water testing applications. Key Features: Dual function probe measures EC and TDS with lab grade precision DIN connector with 3 foot (1 meter) cable for flexible