Laser Diode For Debye-Sears Effect, Wavelength: Approx. 650 Nm, Supply Voltage: 3 V Dc, Power: < 1 Mw, Current Consumption: Max. 30 Ma, With 1 M Connector Lead And Barrel Connector For Connecting ultrasonic Cw Generator, Dimensions: 90 mm X 17 mm Diameter.
Rectangular Refraction Cell, Material: acrylic rectangular, Color: clear, excellent for showing refraction and internal reflection in water, and to measure its refractive index, has uniform wall thickness to eliminate distortions, Dimension: 6X3X6.2 CM
Spectrum Tubes - Sulphur, Length 26Cm, High-Quality Design For Greater Viewing Area, Effectively Demonstrate The Spectral Lines Of Pure Substances, For Use With Spectrum Tube Power Supply