Methanol Solution Refractometer Hydrometer Freezing Point Instrument Cryoscope

Features: Small size, light weight, attractive appearance, easy to use. Reliable principle, accuracy to meet the actual needs. The total reflection critical angle method is used to measure the refractive index of the solution, and then the concentration of the measured liquid and its performance are calibrated. Precautions Do not place in environments with relative humidity> 85% for long periods of time to prevent the optical system from being affected. Do not allow liquids and water to enter the adjustment knob and eyepiece, as this may damage the internal components. Do not drop or collide to avoid damaging the accuracy of the instrument. Specification: Scale range: -50-0 Minimum scale: 1 Package includes: 1 x Refractometer 1 x Instruction 1 x Screwdriver 1 x Straw 1 x Flannel Details pictures: