Tunnel Controllers We offer a range of Code Systems for Fuel sites, Self-Serve and Tunnel applications. ICS | Kesseltronics ICS Tunnel Master Jr Tunnel Master Jr. tunnel controller. It's the industry workhorse -- simple yet highly capable. View More Details Download Brochure Tunnel Master WBC Tunnel Master wbc -- Controlling your equipment has never been easier and has never been this sophisticated. View More Details Download Brochure Kesseltronics rTC Managing your wash site just got easier. View More Details Download Brochure