Precise compatibility Accepts control signals at 3–5V, 12V, or 24V DC (selectable version) and is compatible with Arduino, STM32, PLCs, and a range of industrial controllers. Safe and reliable isolation Provides optocouplerbased isolation between logic devices and voltage systems, delivering a safe and reliable boundary to prevent signal interference and reverse current. Durable construction Built with a optocoupler IC, thick PCB, screw terminals, and indicator LEDs. Designed for DIN rail clipon mounting and compatible with standard 35 mm rails. Fast and stable performance Offers fast switching response with strong anti interference capability. Supports input signal inversion and relay or driver triggering as needed. Practical use scenarios Industrial automation with microcontrollers: Interface an Arduino or STM32 with a PLC or motor drive while isolating the low voltage logic from voltage circuits. Noise reduction in control loops: Isolate sensitive logic from noisy sensing lines to prevent interference and protect control hardware. Compact panel installations: Mount in a control cabinet on a 35 mm DIN rail for a tidy, space efficient isolation solution.