DFRobot Relay Shield  V2.1 is a completely new design which is capable of controlling 4 relays at a time.

Create your own dupont yarns with this set! Choose between 1, 2, 3 2x2, 2x3 or 2x4 Connectors and make the cables work.

Plenty of buttons! In various sizes, colors and formats, what more can you want in life?

This relay shield is capable of controlling 4 relays . The maximum switching power can be 360VA / 90W . It can be controlled directly by the Arduino by means of digital IOs digital with external power of 9v . With integrated xbee socket and APC220 socket, it can be controlled wirelessly via Xbee / bluetooth / APC220 . Make it an ideal solution for home automation and robotics.

The GSM Module/GPRS based on the Simcom Arduino Shield module. The module allows you to obtain SMS, MMS, GPRS and Audio via UART commands by sending AT commands (GSM commands 07.07, 07.05 and simCOM enhanced with COM commands). The module also has 12 GPIOs, 2 PWMs and an ADC from the SIM900 module (they are all 2V8 logic) present on board.

Solid State Relay - 8 Channels

Suporte Lcd/LED 32/55 Tilt Slim Vesa 800/400 70kg

TOSR02-T - USB / Wireless 5V 2-channel Relay Module Support for temperature sensor