Used X-Rite 331 Densitometer in excellent condition. Currently in use without any problems or issues.
X-Rite 331 Handheld Densitometer was designed for black and white film measurement applications, where portability is required. Self-contained light source for the light table accommodates films up to 11"W. Features the same accuracy and repeatability as larger countertop units, measuring densities up to 4.0 D (2 mm). Features push-button zeroing, an instant off/on switch to prevent battery drainage, and low battery indicator. Measuring depth (throat) is 5-1/2". Accuracy of .02 D and repeatability of ±,0.01 D. Operates on four AA rechargeable batteries (included) or from an AC power source. Includes a certified step wedge calibration strip, battery recharger, and instrument carry case. 90-130 VAC, 50-60 Hz, 15W. 5" x 7" x 2". 1-1/2 lbs.