The Ø 40 mm modular signal tower series features high-luminosity LED light modules with steady, flashing, strobe, and multi-strobe beacon functions. It offers six lens color options and can alternatively use conventional incandescent bulbs. A piezo buzzer module with steady or pulsing tones is available. The towers can be pre-assembled or configured from individual modules, with various mounting types and user-friendly connection technology. It is PLC-suitable and has a high protection rating of IP66 and UL type 4/4X/13.