Refractometer calibration solution is used to accurately calibrate your refractometer for testing natural sea water or synthetic sea water. Specifically manufactured for calibrating refractometers for use in testing natural or synthetic sea water. Clean refractometer prism slide with clean fresh w...

Innovating Science buffer calibration kit is used to determine pH levels, and includes pH 4, pH 7, and pH 10 solutions for calibration, and electrode storage solution (electrode sold separately). The kit has an instructions and safety data sheet (SDS) packet for product information and handling proc...

The Boveda One-Step Calibration Kit is a simple and surefire method to accurately calibrate any digital or analog hygrometer or humidity sensor. The One-Step Calibration Kit utilizes Boveda's 75.5% relative humidity standard, which is widely used and accepted by chemists and lab professionals to de...

This digital pen style pH meter is an ideal instrument for any aquarium, the fishing industry, swimming pools, school laboratories, food & beverage etc. All inspection qualified before shipment. Factory calibrated, it can be used immediately. Please be sure to calibrate with buffer solution before u...

TDS Meter NaCl Calibration Solution C-342.