Product Name: Ccq-500 Top Quality Lens Meter, Optical Equipment. Lens Meter Model NO.: CCQ-500 Trademark: RS Transport Package: Carton Specification: CE, FDA, ISO9001 Origin: China HS Code: 90185000 Product Description Lens meterCCQ-500,Technical DataExternal reading lensmeter , top quality in China1. Green LED light2. Wide visual field3. ± 25D measurement achievable4. Sealed optical system5. Ergonomics design6. AC adaptor powerThis device is applicable to all-level measurement testing departments, spectacles manufacturers, spectacles retail stores, hospital's department of ophthalmology and optical elements factories for conducting measurement of spherical lens diopter of spectacles or lens, diopter of cylindrical lens, astigmatism axis angle of cylindrical lens, prism degree and prism basal angle.1. ± 25D measurement2. Wide field of vision observation3. External reading1,RangeofmeasurementSpherical lens:-25D~+25DCylindrical lens:-9 . 99D~+9 . 99DSpace of readings:0 . 01D, 0 . 06D, 0 . 12D, 0 . 25D2,Astigmatism axis angle of cylindrical lens0~180°space of readings:1°3,Prism degreeModel A 0~5Δ space of readings:1ΔModel B (with prism compensator)4,Prism basal angle0~180°space of readings:1°180°~360°space of readings:5°5,Range of ocular visibility adjustment-5D~+5D6,Size of measured lensΦ16~ Φ 80mm7,Overall dimensions320mm(L)×150mm(W)×450mm(H)8,WeightModel A 4.8kgModel B (with prism compensator) 4.9kg9,Lamp of illuminationΦ 5 super-lighting LED10,power supplyDC 6V/200mA11,Power1 . 2W12,Temperature-10ºC~+50ºC(in operation)20ºC~+60ºC(in storage/during transport)13,Humidity30~75%(in operation)10~85%(in storage/during transport)