NOYITO 4-Channel Micro USB Relay Module USB Smart Control Switch USB Intelligent Control Switch June2023_cocoonwix 8lb / 360g Color: silvery

8lb / 360g Color: silvery (Surface Polishing) Installation Accessories Specification Screws : Length 1

Thermal By-Pass Valve

The cable is properly circled by the nylon braided cloth

4V 500mAh Ni-MH Rechargeable (Type: AAAA*2 Battery cells

NOYITO 4-Channel Micro USB Relay Module USB Smart Control Switch USB Intelligent Control Switch June2023_cocoonwix 8lb / 360g Color: silveryNOYITO 4 Channel Micro USB Relay Module USB Smart Control Switch USB Intelligent Control Switch Hardware introduction and description Board size: 56 x 63mm Board Interface Description: COM1: common; NC1: normally closed; NO1: normally open. COM4: common; NC4: normally closed; NO4: normally open. Communication protocol description: Default communication baud rate: 9600BPS Turn on the 1 channel relay switch: A0 01 01 A2 Turn off the 1 channel relay