Veetron supplies Crookes Radiometer Single for Scientific and Laboratory Use. Veetron holds ISO 9001:2000 quality assurance certifications. Crookes Radiometer Single for Scientific and Laboratory Use is available with evacuated glass bulb of approximately of 70 mm diameter having fine pivot at its centre which supports four light weight vane of mica 10 mm square approximately and blackened on one surface. Crookes Radiometer Single for Scientific and Laboratory Use is mounted on a bakelite stand. This radiometer is when exposed to sunlight or bright lamp the rotor rotates rapidly.