Profile: Engineering Solutions, Inc. is manufacturer of the mistral keypad test systems membrane switch testers and Omniguard™p manometers. Our Accessor&trade 4000 digital access control system turns any existing key lock into a complete access control system. Our Accessor&trade 4000 contain a self-contained key box which is programmed with up to 1,000 access codes. They are equipped with a self-contained, battery operated unit which requires no wiring, and is easily installed next to any door or lock. Our Omniguard™ 4 is used for monitoring and documenting vacuum and pressure in a containment area. The Omniguard 4 utilizes pressure measurement technology to accurately monitor pressure inside a containment area. It is used for asbestos, lead and mold abatement and clean room monitoring