See Brady Products
Sensor/Actuator Double-Ended Cordset: Male straight A-coded white 4-pin M12 F&B (Wash-Down) connector to female angled A-coded transparent 4-pin M12 F&B (Wash-Down) connector with 2xLEDs (PNP), 10-30 V DC, 4 A; TPE orange cable, 4-wires, 0.25 mmA²