1 Channel Relay Shield Module, 10PCS DC 5V Indicator Light LED Module for Arduino R3 MEGA 2560 1280 ARM PIC AVR STM32 Raspberry Pi MCU DSP Official Boards Shield (10PCS): Amazon.com: Industrial
12V Time Delay Relay Module 1s~10min Adjustable Potentiometer Delay Board Control Switch Connect Module With On Off Indicator|Relays| - AliExpress
1 Channel Relay Shield Module, 10PCS DC 5V Indicator Light LED Module for Arduino R3 MEGA 2560 1280 ARM PIC AVR STM32 Raspberry Pi MCU DSP Official Boards Shield (10PCS): Amazon.com: Industrial
55.34.8.024.0040 Finder | Distributors, Price Comparison, and Datasheets | Signal Relays | Octopart