Huanyu /b> Huanyu mainly provides instruments and tools. We provide voltage customized services, specific requirements can be contacted by email, we will respond promptly.After your order is confirmed, the product usually takes 7--13 business days to arrive to your hand. Features: 1. Outer reading 2. Measurement range: 0-±25D 3. Wide field of vision observation 4. AC/DC power supply Technique Parameters : 1.) Angles of Measurement: 0 to 25D Minimum Outer Reading 0.125D Minimum Inner Reading 0.125D graduation up 0 to ±5D, And 0.25D graduation over ±5D to ±25D 2) Cylinder Axis Range: : 0~180° 3) Primatic Power Range : 0~5 prism diopters1g raduations Prism diopters,1graduations 4) Primatic Base Angle : 0~180° 5) Eyepiece Adiustment : ±5D 6) Dimension of Objective Lens :16~86mm 7) Overall Size : 220mm x 120mm x 430mm 8) Weight :4Kg 9) Ligjting Bulb : 220V/-3V 3W or 110V/-3V 3W Friendly Reminder When purchase, please confirm the product is from our Huanyu otherwise we can't ensure the quality and after-sale service.We will try our best to provide you the best product and service, welcome to buy our product.
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