Profile: John Caunt Scientific Ltd. is a supplier of cutting edge equipment. Our product line includes neutron, gamma, contamination monitor, shielding products, radiation detector, and counting equipment. Our 1800a dual channel laboratory counter is used to count digital pulse signals over a range of user selectable counting periods. It is a compact and robust unit suitable for laboratory or field use. Our GMS1800b laboratory counter is a unit which may be used with many common types of Geiger or Scintillator radiation detectors. It provides a variable HT voltage generator, and can perform several types of measurement. Our Mk6 gamma counter is a portable, lightweight instrument that indicates the presence of hidden organic material by signaling and showing unexpected changes in the density or thickness behind a barrier material.