Specification Brand : EISCO BulletPoint1 : HIGH-QUALITY DESIGN || Eisco's spectrum tubes are designed with a greater viewing area for clearer observations. BulletPoint2 : OBSERVING THE SPECTRA || These Spectrum Tubes use research-grade gasses and vapors to provide bright-line spectral lines of the highest clarity. They are designed for optimum intensity and line resolution when examined in a student-grade spectrometer equipped with a ca.200 line/mm (5000 line/inch) diffraction grating. BulletPoint3 : SPECTRUM TUBE POWER SUPPLY || Tubes should be energized with the Spectrum Tube Power Supply, which is made expressly for this purpose. Tube life is extended if operation is cyclic for no more than 30 seconds "on," 30 seconds "off," etc., increasing the usable life of the tubes. BulletPoint4 : PRODUCT DIMENSIONS || Each Spectrum tube measures 26cm long (10.24 Inches) CpsiaCautionaryStatement : no_warning_applicable ExternallyAssignedProductIdentifier1 : 849230053802 ExternallyAssignedProductIdentifier2 : 0849230053802 ExternallyAssignedProductIdentifier3 : 00849230053802 Hazmat : 3 ItemDisplayDimensions_Length : 260 millimeters ItemName : EISCO Labs Premium Spectrum Tube - Helium (He), 26cm ItemPackageDimensions_Height : 6.858 centimeters ItemPackageDimensions_Length : 31.242 centimeters ItemPackageDimensions_Width : 6.604 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : science-classroom-optics-kits Language : english MagnificationStrength : 2.5 multiplier_x Manufacturer : EISCO Material : Glass ModelNumber : PH1196B3 NumberOfItems : 1 NumberOfPieces : 1 PartNumber : PH1196B3 ProductDescription : Eisco Labs Magnifying (Reading) Glass, Lab Quality, 3" diameter, 6"cm Focal Length, 2.5X Magnification
Lab quality glass magnifier, appropriate for classroom and laboratory use. Lens is 3" (70mm) in diameter and has a focal length of 6" (15cm) with a magnification power of 2.5X.
Also can come in handy at home. 2.5x magnification is great for reading or hobbies where a larger object size is necessary.
The glass lens has a chrome plated metal frame and a bakelite handle. Shipped in frustration free cardboard packaging.