The 209-04MSFD-A is a foot-mounted pressure switch manufactured by CTS Corporation. This switch is specifically designed for automatic door scenarios and provides a safe, cost-effective alternative to hardwired floor mounted switches. Using a robust foot actuator, the 209-04MSFD-A is capable of sensing movement and actuating an electric circuit in response to a detected footstep. The switch includes a variety of features such as resistance to shock and vibration, adjustable set points, remote control, and adjustable hysteresis. The 209-04MSFD-A is suitable for both indoor and outdoor applications and is UL listed, making it a trusted and safe solution for commercial and industrial spaces.