1pcs X Brand New Usb Relay 4 Channel Programmable Computer Control

US $18.00

Shenzhen, GD, China
Jan 29th

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1pcs x Brand New USB Relay 4 Channel Programmable Computer Control Specification This is USB controlled relay Board with 4 channels. It’s used the HID technology, so no need to install any driver in windows system and you can easy to use. We also provide an application and the C++ develop library that you can easy to integrate this module to your project. This module can be used: 1. Home automation 2. Robotics Control 3. Control doors and windows via windows system 4. Controller power supply Application: 1. Supply the application code 2. Supply C++ lib and dll for building your own project (include usb_relay_device.dll, usb_relay_device.lib, usb_relay_device.h) Wiring Diagram: Package Including 100% Brand New 1pcs x Brand New USB Relay 2 Channel Programmable Computer Control Shipment 1. Worldwide Shipping.(Except some countries and APO/FPO) 2. Orders will be shipped within 1-2 business days after the payment verification. 3. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays.Transit times may vary,particularly during the holiday season. 4. If you have not received your shipment within 30 days from payment,please contact us.We will track the shipment and get back to you as soon as possible with a reply.Our goal is customer satisfaction! 5. Items will be marked as " Gift " in low value. 6. Delivery time (Business days) Default shipping by China Post/HK Post Air Mail Shipping Way Post Air Mail HK Post EMS DHL Fedex UPS Delivery Time 12-35 12-35 5-10 4-8 3-6 4-8 Return/Refund 1. You have 7 days to contact us and 30 days to return it from the date it was received. 2. Both Replacement and Money Return are accept. Return shipping fee afford with buyer. Guarantee 1. 12 months Manufacturer's limited warranty for defective items(excluding Man-made damage).Accessories come with a 3-month warranty. 2. Defective item MUST BE reported and returned within the warranty period. Feedback 1. We maintain high standards of excellence and strive for 100% customer satisfaction. Feedback is very important,We hope you can contact us immediately before you give us neutral or negative feedback. 2. If you have any questions, our Customer Service staffs welcome you to email or call us. We strive to answer all questions and resolve any problems as quickly as possible Notice: All the package send to USA with tracking number. The Other Country, you can choose Economy Int'l shipping(Without tracking number) or Standard Int'l shipping(with tracking number).