The Timed Entryway MV Foam Sanitizer (24V) is an automated foam applicator for projecting sanitizing chemicals on to floors of 6' wide double doors to prevent cross contamination. When activated, this venturi injection system uses city water pressure (35 - 125 PSI) to draw and blend chemical concentrate into the water stream to create an accurately diluted solution. Rich, clinging foam is created by injecting compressed air into the solution to greatly increase volume and coverage ability. Foam is then projected through the discharge hose and Spreaderâ„¢ nozzle. The system timer is user-programmable to meet the needs of any facility. This unit requires 24VAC electrical input - a locally sourced step-down transformer is required.