... -Wavelength: 1310 or 1550. -Dimension: 115x60x20 Laser source TW3110is the most rugged small size instrument in the ... 70Dimension(mm)115X60X20Weight (g)110Techwin RecommendationTW3110 Handheld Light Source is designed for mini portfolio with TW3205 Optical ... multi mode fiber cable.MODELINCLUDESAll TW3110 ModelsTW3110 Optical Light Source, Alkaline battery, Instruction Manul, Contton Tampon and ...