4 Channel Outputs 4 optically Isolated Inputs USB/Wireless Relay + OLED Display

4 Channel Outputs 4 optically Isolated Input Bluetooth Smartphone Relay+OLED

LazyBone V4 - SmartPhone Controlled Switch (Android/iOS/Bluetooth/Password)

15W Isolated Dual Power Supply 5-32 to +-12V 15V 24V 30V DC DC Boost-Buck

32CH NPN/PNP Optically Isolated Input & 32CH 300MA NPN Solid State Relay

1000V Optically Isolated 8-channel DMX512 Signal Relay Amplifier LED controller

EZboil, Power Regulator for Boiling Process Automation w/ Relay Outputs

TAXAN DLP Projector x1.15 Optical Zoom Lens Computer Video Inputs