Product Name: Optometry Portable Handheld Auto Digital Digital Keratometer Sw100 for Ophthalmology Model NO.: SW100 Customized: Non-Customized Application: Optical Shop Type: Ophthalmic Refractometer Keratometer Trademark: SHTOPVIEW Origin: Shanghai HS Code: 9018500000 Product Description Ophthalmic Device High Quality Price of portable keratometer SW-100Features:Electronic and optical integration, ultra small corneal curvature tester, mainly used to measure the cornealcurvature radius and diopter, wireless output print data.It can observe the eye directly through the screen. Very light, only 0.5kg with batteries.Specification:1.Measuring range : 6.5mm-9.5mm ( curvature radius )2.Precision: 0.05mm3.Resolution of curvature radius of cornea: 0.01mm4.Resolution of axial angle of cornea: 1 Deg5.Output: wireless infrared thermal printer6.Singel measuring time:0.03s7.Power:50mW+15%8.Power Supply : three AA batteries9.Net Weight: 0.5kg(with batteries), Machine Demension : 240mm x 90mm x 60mm10.Packing details : Gross Weight : 2kg, 30cm x 16cm x 10cm