The GLL170T-B333 with Sensor is an optical fibre amplifier manufactured by Sick. It features NPN and PNP configurations, an IP66 environmental protection rating, a 10÷30VDC power supply voltage, and a maximum current consumption of 100mA. The amplifier helps detect even the slightest changes in optical signals, ensuring a reliable and consistent reading. It is also designed for use in harsh environmental conditions.