Panasonic Diffuse Photoelectric Sensor 15 → 100 mm Detection Range NPN IP67 Block Style CX-444. Electrical Connection: 2m Cable. Maximum DC Voltage: 24V. Optical Technology: Phototransistor. Light Source: Red LED. Maximum Current: 100 mA. Response Time: 1 ms. Housing Material: PBT. Minimum Operating Temperature: -25°C. Series: CX-400. Maximum Operating Temperature: +55°C.