Hanna Marine pH 4.01 Calibration Solution – 500 mL (HI7004L)

The HI7004L pH 4.01 Calibration Solution is a premium-quality buffer designed for accurate calibration of pH meters. Color-coded for easy identification, this solution ensures precise and reliable measurements in marine, laboratory, and aquaculture applications.

High Accuracy and Quality

• Accuracy: ±0.01 pH @ 25 °C

• Temperature chart printed on the bottle for reference at various temperatures

• Air-tight seal with tamper-proof cap maintains solution integrity

Traceability and Longevity

• Each bottle is marked with lot number and expiration date for traceability

• Specially formulated with a 5-year shelf life from the date of manufacture (unopened)

Easy to Use

• Color-coded label makes buffer identification quick and simple

• Ideal for calibrating pH meters in aquariums, marine labs, and field applications