MURPHY EGS21 P-400-12-B is an electromechanical relay instrument primarily used for pressure measurement.
Its measurement target is pressure, with a range of up to 400 psi (2.76 MPa / 27.60 bar), suitable for 12V DC systems (a built-in step-down resistor is required for 24V systems). The instrument features an SAE-type low-treated stainless steel bezel and an impact-resistant, waterproof polyester (PBT) housing.
It uses a Hall-effect sensing element, outputs ground signals, and triggers in a decreasing manner. With a wide temperature adaptation range, it operates stably in various environments.
It also has overvoltage and reverse polarity protection, complies with SAE J1810 standards, and can meet pressure monitoring needs in various industrial scenarios.