Panasonic Diffuse Photoelectric Sensor 0.04 → 0.2 m Detection Range PNP IP67 Block Style MQ-W20CR-DC12-24V. Electrical Connection: Cable. Optical Technology: Phototransistor. Terminal Type: Cable. Light Source: Red LED. Maximum Current: 100 mA. Response Time: 2 ms. Housing Material: PC. Minimum Operating Temperature: -25°C. Maximum Operating Temperature: +55°C.