Field Environmental Instruments (FEI) is an environmental equipment rental and supply company established in 1995. It has grown from 7 employees locally delivering products to over 40 employees with over 8,000 customers across the country. FEI offers rental, delivery, sales, service, and technical support for a wide range of air monitoring, water quality, and other environmental instrumentation from over 20 manufacturers. They aim to provide competitive pricing, next-day delivery, and exceptional customer service and support.