Specification Brand : EyeElite BulletPoint1 : New Optical System: Our refractometer utilizes state-of-the-art Hartman imaging technology to provide exceptional imaging quality and precise measurements. BulletPoint2 : Manual Tracking and Auto-Measuring: Effortlessly track and measure substances with the convenience of both manual and automatic measuring options. BulletPoint3 : Accurate Measurement Results: With the advanced Hartman imaging analyzing and processing technology, you can trust our refractometer to deliver accurate and reliable measurement results. BulletPoint4 : Bright 7" TFT Tilt Screen: Experience clear and vibrant visuals on our refractometer's bright 7-inch TFT tilt screen. The screen can be easily adjusted to move front and back for your convenience. BulletPoint5 : Motorized Chin-Rest and Auto Paper-Cutting Printer: This refractometer is designed with a motorized chin-rest for comfortable usage. It also features an auto paper-cutting printer to instantly provide you with printed measurement data. IncludedComponents : Auto-Refractor Keratometer ItemName : EyeElite Ophthalmic 7" TFT Touch Screen Auto-Refractor Keratometer Optical Refractometer RFK-920 ItemPackageDimensions_Height : 5 centimeters ItemPackageDimensions_Length : 19 centimeters ItemPackageDimensions_Width : 11 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : science-lab-refractometers Manufacturer : EyeElite Material : plastic ModelName : Eujgoovoxw96pha5z ModelNumber : 2024041801 NumberOfItems : 1 PartNumber : 8dh11 ProductDescription : Vertex Distance (VD): 0.0, 12.0, 13.75, 15.0. SPH: -30.00D~+25.00D (VD=12mm, 0.01, 0.06, 0.12, 0.25 Unit) CYL: 0.00D~±10.00D (0.06, 0.12, 0.25 Unit) Axis(AX): 1°~180° (1° Unit) Cylinder Form: -, +, ± Pupil Distance(PD): 10~86mm Minimum Pupil Diameter: 2.0mm Measuring Time: ∠0.5s Pupil Diameter: 2.00~8.00mm Measuring Light Energy: ∠30uw (Insure measuring safety) Radius of Curvature: 5.0~10.0mm (0.01mm Unit) Corneal Power: 33.00D~67.00D, (In case that the corneal equivalent refractive power is 1.3375) Corneal Astigmatism: 0.00D~-15.00D(0.06D/0.12D/0.25D Unit) Data Storing: Each 10 measured values of left eyes and right eyes Axis: 1°~180° Chart: Auto fog Monitor: SHARP 7″ TFT LCD touch screen (Angle of view adjustable) Built-in Printer: 57mm thermal printer, auto paper-cutting Electrical Power: AC 100~250V, 50/60Hz G.W.: 52 Lbs. Dimensions (packing): (L)29"X(W)16"X(H)25" Warranty: 1 year