Iot Relay - Enclosed High-Power Power Relay for Arduino, Raspberry Pi, PIC or WiFi, Relay Shield Description Features: Safe, Reliable Power Control One circuit, 4 outlets, 2x NC, 2x NO Wires to your Arduino, Raspberry Pi, PIC, or other micro Takes the place of a relay board. Fully assembled and ready to use. Includes surge supression, debounce, safety breaker Product Details: Contact Type: Normally Closed, Normally Open Brand: DLI Operation Mode: Automatic Package Dimensions: 7.76 x 4.96 x 2.91 inches Item Weight: 1.17 pounds Item model number: IoT Is Discontinued By Manufacturer: No Date First Available: April 29, 2015 Manufacturer: Digital Loggers