Nucleonix Systems [P] Ltd offers Beta-Gamma Contamination Probe with a rotating shutter. Nucleonix Systems [P] Ltd is an ISO 9001:2000 Company. This product uses a thin walled GM tube which is housed in a cylindrical shell made of Aluminum. Detector side of the cable has a cable gland arrangement with cable length of 1 meter. The rotating shutter arrangement is made of SS shell, which is kept open for Beta measurement. The Detector Probe measures 21 cm length x 3.2 cm diameter. It requires an Operating Voltage of + 500V.