Built-in 3.3V to 5V serial converter circuit, input and output compatible with 3.3V and 5V level.
4-channel 250V 10A high current relay (charged voltage of 0-250V can be), driving ability, with LED indicator.
Support cascade function (a four-channel, two-channel connected together to become eight, and so on, up to 24 channels.)
Built-in 3.3V regulated output, available for 3.3V systems.
Optional OUR ASR M08-A speech recognition module access, voice recognition control. Size: 66mm*66mm*20mm (L*W*H)

Technical Details

Product Details

Package Dimensions
Width : 1.34 inch
Height : 0.47 inch
Length : 3.39 inch

Shipping Weight: 1.6 ounce (View shipping rates and policies)

ASIN : B01FDD510C