The NAR-2T Refractometer is designed for use with compounds which require measurement at high temperature. 120 VAC. Specifications: Refractive Index Range (nD): 1.3000-1.7000, Refractive Index Scale (nD): 0.001, Refractive Index Accuracy: 0.0002, Brix Range: 0.0-95.0%, Brix Scale: 0.50%, Brix Accuracy: 0.10%, Temperature Range: 0-120° C, Shipping weight: 12.5 Lbs.