Our Bulletin 445L Guardshield™ POC Type 4 Micro 400 safety light curtains are economical three-box safety light curtains in a small housing. Designed for use in benign industrial environments (IP54), this light-duty system is targeted to the semi-conductor, micro electronic and small assembly machine markets. We also offer these light curtains in cascadable configurations and in IP69K enclosures. The Micro 400 requires a dedicated controller such as the MSR41 for ON/OFF applications or the MSR42 for advanced safety functionality.