One website This device is a field test and simulation case produced by ABB (the model appears to be compatible with the category of test and simulation devices for protection and control relays or substation automation systems and professional control points such as switchgear and relay testing simulators). Main visible components and features: Brand: ABB, a long-standing company in the field of electrical power and control. Upper control panel: Contains a digital display (LED) to show measured values (voltage, current, or time), and a small analog indicator. YouTube Simulation buttons: Blue and red colored buttons to simulate close/open operations, and test signals (Adjust Test Value). YouTube Colored connection points: Ports for banana plugs in blue, red, yellow, and black for connecting injection lines and testing signals This device is a field test and simulation case produced by ABB (the model appears to be compatible with the category of test and simulation devices for protection and control relays or substation automation systems and professional control points such as switchgear and relay testing simulators). Main visible components and features: Brand: ABB, a long-standing company in the field of electrical power and control. Upper control panel: Contains a digital display (LED) to show measured values (voltage, current, or time), and a small analog indicator. YouTube Simulation buttons: Blue and red colored buttons to simulate close/open operations, and test signals (Adjust Test Value). YouTube Colored connection points: Ports for banana plugs in blue, red, yellow, and black for connecting injection lines and testing signals ( Phone number appears when clicking the contact button )