Current - manufacture operations:(1) Autocascade cryogenic systems primarily for water-vapour-cryopumping in vacuum csystems, autocascade refrigerants manufacture and development (patented widely); tem[eratures achieved below -153 degC on standby and -130 degC on load.(2) Thermoelectrics (peltier devices & systems for cooling, temperature maintenance, power generation)(3) UV testing: machines for UV weathering testing, weathering testing servics at out lab(4) Airglow Photometer manufacture: for use in mapping the glow phenomena in the atmosphere, in the night sky.