Pyser-SGI is a British Company established since 1848. A leader in Electro-optical products particularly in Defence & Security, Graticules, and Broadcast & CCTV Lenses. Quasi-S becomes Pyser’s exclusive distributor in Singapore & Malaysia offering a wide range of supreme quality products. All these are specifically designed and manufactured such as reticles, optical gratings, calibration standards, TEM grids, resolution charts, precision apertures and custom-made products for the defence, industrial measurement, microscopy, imaging, instrumentation and metrology markets. Manufacture of optical inspection, microscope and measurement instruments, sold into various markets ranging from higher education to research and quality control laboratories on a global scale.