The OMRON SRT2-OD04CL-1 is a waterproof terminal with 4 PNP (positive common) outputs. It is one of eight cost-effective waterproof models. Featuring connector-based wiring, it requires no tools for connection and can be installed close to sensors, reducing signal cable length. With an IP67 dustproof and waterproof rating, it is suitable for direct on-site installation. It shortens both initial setup and maintenance time. The compact size is 60 mm wide × 54 mm high (for 8-point models), and connectors and switches are accessible from the front.