Technical Parameters Category Specification Model M22-WRK3/K20 Product Type Ultrasonic Proximity Sensor Housing Thread M22 x 1 Sensing Range Defined by "/K20", typically up to 200 mm (0.2 meters). Sensing Object Virtually any solid or liquid material (sound-reflective). Output Type Typically 1 PNP and 1 NPN output, programmable for NO/NC operation. Output Configuration 4-wire (2 for power supply, 1 PNP output, 1 NPN output). Supply Voltage 10-30V DC Current Consumption Typically < 30 mA Connection Type Fixed Cable or Quick-Disconnect, defined by suffix. Housing Material Typically brass or stainless steel with PTFE/POM sensing face. IP Rating IP67 (Dust-tight and protected against temporary immersion) Key Features Programmability Teach-in function for easy setting of switching points. Temperature Compensation Built-in for stable performance in varying temperatures.