Oakton pH Testers Replacement Sensor Oakton Oakton pH Testers Replacement Sensor (OK3562438)Expand the lifetime of your Oakton pH tester by keeping these replacemen sensors on hand. These pH testers work with Oakton's line of 10, 20, and 30 series pHtestrs (OK3563410, OK3563420, and OK3563430).
Manufacturer's Product Information
... Note: Calibration Buffer Solutions are available separately. — Ships from HF: OR, CA, CO, PA, TX, FL USA (No USPS)....more info.