LGC20-50020-RS Through-beam Measuring Light Curtain consists of a transmitter and a receiver. It is fitted with STM32 chip, shift scanning control, special optical focusing lens, and filter plate to remove stray light and scan the measured objects at high speed. It can avoid adjacent crosstalk and strong light interference. megabit network port for interaction with the host computer. The external terminal is pluggable, for convenient and fast use without tools. Rail mounting makes the installation flexible and convenient.