5V 4 Channel SSR Solid-State Relay High Level Trigger 2A 240V
DHT11 Temperature and Humidity Sensor for Arduino Keyestudio module
XBee Zigbee Wireless Transport Shield
The Arduino Xbee Shield Wireless Module allows an Arduino USB board to communicate wirelessly using a Zigbee Xbee wireless module. It is based on the Xbee module from MaxStream.
5 Channel Infrared Detection Tracing Photoelectric Sensor