{"product_id":"ins-11031-external-reading-lensmeter-sml-ii","title":"INS-11031 | External Reading Lensmeter SML-II","description":"\u003cp\u003eThe \u003cstrong\u003eOpti+ INS-11031 SML-II External Reading Lensmeter\u003c\/strong\u003e is a manual optical instrument designed for measuring the vertex power, cylinder axis, and prism characteristics of ophthalmic lenses. Its clear external reading system, wide ±25.00 D measuring range, and included prism compensation unit make it a dependable solution for optical laboratories, eyewear stores, optometry practices, and lens inspection departments.\u003c\/p\u003e\n\n\u003cp\u003eThe instrument supports spherical, cylindrical, and prism lens measurements and can also be used to evaluate contact lens power. Its adjustable eyepiece, green illumination system, integrated lens-marking mechanism, and AC or external battery operation provide the accuracy and flexibility required for everyday professional use.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003e\u003cstrong\u003eOutstanding Features\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003ch4\u003e\u003cstrong\u003eExternal Reading System\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe SML-II incorporates an \u003cstrong\u003eexternal diopter reading scale\u003c\/strong\u003e that allows the operator to determine lens power clearly and efficiently while observing the target through the adjustable eyepiece.\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eWide ±25.00 D Measurement Range\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eWith a vertex power range from \u003cstrong\u003e-25.00 D to +25.00 D\u003c\/strong\u003e, the lensmeter can evaluate a broad selection of prescription lenses used in optical dispensing and laboratory applications.\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eIncluded Prism Compensation Unit\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe integrated prism compensator expands the prism measurement range to \u003cstrong\u003e0–20Δ\u003c\/strong\u003e. This allows accurate evaluation of lenses with higher prism prescriptions that exceed the standard measuring range of conventional manual lensmeters.\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003ePrecise Cylinder Axis Measurement\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe instrument measures the cylinder axis from \u003cstrong\u003e0° to 180°\u003c\/strong\u003e with 1° scale divisions, supporting accurate verification and alignment of astigmatic prescriptions.\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eAdjustable Eyepiece\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe eyepiece offers a focusing range from \u003cstrong\u003e-5 D to +5 D\u003c\/strong\u003e, allowing the operator to obtain a clear target image according to individual visual requirements.\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eGreen Illumination System\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eA high-visibility \u003cstrong\u003egreen illumination source\u003c\/strong\u003e provides a clear observation target while helping reduce chromatic interference during lens measurements.\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eMultiple Lens Applications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe SML-II can be used to measure \u003cstrong\u003espherical lenses, cylindrical lenses, prism lenses, and contact lenses\u003c\/strong\u003e, making it suitable for a variety of lens inspection and verification procedures.\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eIntegrated Three-Point Marking System\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eA built-in \u003cstrong\u003ethree-point lens marking mechanism\u003c\/strong\u003e allows the operator to mark the optical center and horizontal reference line for proper lens positioning and frame installation.\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eLens Diameter Scale\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe integrated measuring scale supports lenses from \u003cstrong\u003e16 to 80 mm in diameter\u003c\/strong\u003e, helping the operator evaluate lens size and positioning directly on the instrument.\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eAdjustable Instrument Angle\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe viewing angle can be adjusted to provide a more comfortable operating position, helping reduce operator fatigue during repeated measurements.\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFlexible Power Options\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe lensmeter supports operation through an \u003cstrong\u003eAC power adapter\u003c\/strong\u003e and can also operate with an external battery box, providing additional flexibility when a direct electrical connection is unavailable.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003cp\u003e✅ \u003cstrong\u003eThe Opti+ INS-11031 SML-II External Reading Lensmeter combines a wide ±25.00 D measuring range, 20Δ prism compensation, precise axis measurement, integrated lens marking, and flexible power options for reliable daily lens verification.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003cdiv class=\"richt-text-block-produkteigenschaften margin-top-xxs w-richtext\"\u003e\n\u003ch2 class=\"headline-akkordeon\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003c\/div\u003e\n\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-family: Arial,sans-serif; font-size: 14px; margin-bottom: 20px;\"\u003e\n\u003ctbody\u003e\n\n\u003ctr style=\"background-color: #e6e6e6; font-weight: bold;\"\u003e\n\u003ctd style=\"padding: 10px;\" colspan=\"2\"\u003eINSTRUMENT DATA\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eInstrument Type\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eManual external reading lensmeter\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eSML-II\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eReading System\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eExternal diopter scale with adjustable eyepiece\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eSupported Lens Types\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eSpherical, cylindrical, prism, and contact lenses\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr style=\"background-color: #f2f2f2; font-weight: bold;\"\u003e\n\u003ctd style=\"padding: 10px;\" colspan=\"2\"\u003eOPTICAL MEASUREMENT DATA\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eVertex Power Range\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e-25.00 D to +25.00 D\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003ePower Scale Graduation\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e0.125 D from -5.00 D to +5.00 D\u003cbr\u003e0.25 D outside this range\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCylinder Axis Range\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e0°–180°\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCylinder Axis Graduation\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e1°\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003ePrism Measurement Range\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e0–20Δ with included prism compensator\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003ePrism Graduation\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e1Δ\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003ePrism Base Angle\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e0°–180°, in 1° increments\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eEyepiece Focusing Range\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e-5 D to +5 D\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eAccepted Lens Diameter\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e16–80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr style=\"background-color: #f2f2f2; font-weight: bold;\"\u003e\n\u003ctd style=\"padding: 10px;\" colspan=\"2\"\u003eOPERATIONAL FEATURES\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003ePrism Compensation Unit\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eIllumination\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eGreen illumination source\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eIllumination Rating\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e6 V, 2 A, 12 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLens Marking\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eIntegrated three-point marking system\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eInstrument Inclination\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eAdjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr style=\"background-color: #f2f2f2; font-weight: bold;\"\u003e\n\u003ctd style=\"padding: 10px;\" colspan=\"2\"\u003ePOWER SUPPLY\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eAC Power Supply\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eAC 110\/220 V power adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003ePortable Operation\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eExternal battery box supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr style=\"background-color: #f2f2f2; font-weight: bold;\"\u003e\n\u003ctd style=\"padding: 10px;\" colspan=\"2\"\u003ePHYSICAL DATA\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eInstrument Dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e11 × 5.9 × 17.7 in (28 × 15 × 45 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eNet Weight\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eApproximately 11 lb (5 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003ePackage Dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e15 × 8 × 21 in (38 × 20 × 53 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eShipping Weight\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eApproximately 13 lb (6 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr style=\"background-color: #f2f2f2; font-weight: bold;\"\u003e\n\u003ctd style=\"padding: 10px;\" colspan=\"2\"\u003eOPERATING ENVIRONMENT\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e5°C–35°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLess than 85%\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eRecommended Environment\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eClean indoor environment without direct bright light\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Opti+","offers":[{"title":"Default Title","offer_id":47022944387318,"sku":"INS-11031","price":407.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0709\/5258\/3414\/files\/product_INS-11031-1.jpg?v=1721348109","url":"https:\/\/bkframes.com\/products\/ins-11031-external-reading-lensmeter-sml-ii","provider":"BK FRAMES, CORP.","version":"1.0","type":"link"}