Celestial navigation
Mark 25 sextant
Special plastic mould for production of specimens Moulds are made of white special plastic (Hakorit), Very low wear and stiffned against bending, unbreakable Self lubricated, easy to clean, rust free Light weight in comparison to steel mould Temperature for use Max. +80º C Min – 30º C. http://www.tetraltd.com/product-Plastic_Mould_Hakorit-176.html
The ALTAIR 4X is an extremely durable Multigas Detector that simultaneously measures up to four gases from a wide range of XCell(R) sensor options including combustible gases, O2, CO, H2S, SO2 and NO2. Its four-year sensor life is 60% longer than the industry average, while its 24-hour run time exceeds the industry average by 71%….