IWW, of Santa Barbara, Calif., introduces the OAKTON Instruments’ new Deluxe pHTestr Kit that’s offered as a complete testing system for measuring pH. It’s the only kit that includes ready-to-use pH 4, 7 and 10 calibration standard buffer solution pouches and rinse water pouches. These unique pouches are more valuable to the user than premixes, capsules and tablets because only pH buffer standards in pouches offer unprecedented convenience, solution freshness and accuracy.