Cleaning: Clean regularly with appropriate electrode cleaning solution to remove buildup and maintain response time

Each HI981039 includes a quality certificate and is backed by Hanna's commitment to customer support

giving you up to 18 months of premium

Compatible exclusively with the Alexapure Pro® Water Filtration System

This electrode has a triple ceramic junction in the outer reference cell and the conical pH sensing portion is made with low temperature glass

HI70024P Salinity Calibration Solution 35 ppt (25 x 20mL) | Hanna Instruments on-the-go water filter Cleaning: Clean regularly with appropriateHI70024P Salinity Calibration Solution 35 ppt (25 x 20mL Sachets) Premium NIST traceable salinity calibration solution standardized at 35. 00 ppt for accurate calibration of conductivity and salinity meters. Each box contains 25 single use sachets ideal for marine aquariums, saltwater testing, oceanography, and laboratory applications. Why Choose HI70024P Calibration Solution? NIST traceable accuracy Standardized with conductivity meters calibrated