QS121XXR12

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Panel indicators, sometimes called pilot lights, are a type of visual signaling device used to indicate the operating status or condition of a piece of equipment or system. QS121XXR12 is a pilot light widely used in signal indication in circuit board and electric system.QS121XXR12 is composed of a signal module and an LED indicator. The module acts as a power supply for the LED indicator. It receives input signal from the circuit board, converts it into a suitable voltage level, and increases it into a DC voltage to power the LED, which indicates the working condition of the system. The LED indicator can be up to 250V AC/DC and powered by different current levels. It is highly visible and recognized by operators easily. The design of QS121XXR12 is simple and cost effective as there are no extra parts required.QS121XXR12 can be applied in variety of systems and devices. Mostly, it is used to signal the power, alarm and status in electrical equipment and circuit boards. Its light will be on when device is running and off otherwise. It can be installed in switch boards, circuit boards, control panels, and other industrial and commercial systems. It can also be operated in extreme temperatures and corrosive atmospheres.QS121XXR12 has wide working range and high accuracy. It can operate at any temperature between -55 to +125 Celsius and has strength up to 10KΩ. It works in a cycle of two types of switching, namely, light up and off. When input switch is running, output signal will light LED yellow and when it stops, LED will be off. The LED indicator provides easy visual feedback and is reliable in operation.In brief, QS121XXR12 is a multifunctional, cost effective and easy to install pilot light indicator. It is widely used to signal power, alarm and status in different kinds of equipment such as circuit boards, switch boards, control panels, etc. Thanks to its wide working range, high accuracy and long life, this device can be used in extreme temperatures and corrosive atmospheres. It is very handy, reliable and straightforward for operators and engineers to use in their applications.

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