Pinpoint High-Precision pH Calibration Fluids Low Range Six Month Set (set of 12 pouches)

PINPOINT® High-Precision pH Calibration Fluids come in plastic envelope packets and are extremely accurate and field portable. Each packet contains ample fluid for calibration (approx. 25mL). All electronic pH instruments should be calibrated monthly. PINPOINT® High-Precision pH Calibration Fluids include: Low Range – pH Calibration Fluid #4.00 (6 pouches) – pH Calibration Fluid #7.00 (6 pouches) Each sealed pouch contains approximately 25mL of fresh calibration fluid. Very field portable, color-coded and dead-on accuracy.