Omron Diffuse Photoelectric Sensor 300 mm Detection Range PNP IP67 Barrel Style E3H2-DS30B4M 2M. Electrical Connection: Pre-Wired Cable. Maximum DC Voltage: 30V. Optical Technology: Phototransistor. Light Source: Infrared LED. Maximum Current: 100 mA. Response Time: 1.1 ms. Housing Material: Nickel Plated Brass. Minimum Operating Temperature: -25°C. Maximum Operating Temperature: +55°C.