Check the listing for details. Eseco Speedmaster SM-14 Portable Densitometer RT-ECDM-SM-14. Condition: Used. Listed at 799.99 USD. Eseco Speedmaster SM-14 Portable Densitometer RT-ECDM-SM-14 In Good Working And Cosmetic Condition. Has Some Minor Scratches, Dose Not Come In Original Packaging. ESECO Speedmaster® SM-14 Digital DensitometerEconomical, Portable and Battery OperatedThe Speedmaster® SM-14 Digital Densitometer is designed to meet the need for an accurate and affordably priced instrument, to measure any film directly from a viewer. The benefit of over 46 years of ESECO's experience in designing and building reliable quality instruments has been applied to the portable SM-14.The proprietary technology employed, assures instant, accurate, and repeatable results, that rivals the same high standards of more expensive units. Featuring total accuracy of +/- .02 from 0.00 to 4.00 Optical Density.Low power consuming components and an extended battery life feature are provided in the automatic "stand-by" mode.The rugged durability, minimal drift and no warm up time provide fast dependable readings. With the film on your viewer, place the SM-14's "EASY READ" probe over the area to be read, then push the read button. The large digital meter instantly displays the reading. It will return to the energy saving "stand-by" mode automatically. - Measuring Range: 0.00 to 4.00 D- Accuracy: ± 0.02 D / Repeatability ± 0.01 D- No Warm-up Time- Portable Power Source: 9-volt Alkaline Battery - Weight: 5.9 oz. / 167.2 grams- Dimensions Height: 2.5 Inches (6.35 cm) / Width: 1.5 Inches (3.81 cm) Length: 4.75 Inches / (12.06 cm)