American Sensor Technologies (AST) AST manufactures MEMS-based pressure sensing products that the company claims offer the best price-performance ratio in the industry. Common applications of AST sensor products are industrial OEM, hydraulic systems, fuel cells, medical gases, HVAC/R, refrigeration (Ammonia, Freon, CO2), oil and gas exploration and production, and off-road vehicles. Products combine exotic metals and AST’s Krystal Bond technology, an advanced process in which inorganic materials are molecularly diffused onto a metallic surface in the presence of certain gases. This formulates into a high-performance strain gauge pressure sensor that supports the specialised needs of key niche markets. Many AST products are UL listed as intrinsically safe and certified for explosion-proof required environments. Some of the world’s most highly respected industrial Fortune 500 corporations have tested and now use AST products in a broad range of critical applications and harsh environments.