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Product: 1X DC 7-30V/5V ESP8266 WIFI 2/4 Channels Relay Module ESP-12F Development Board
- Onboard mature and stable ESP-12F WIFI module, large capacity 4M BYTE FLASH
- I/O port of the WIFI module and the UART program download port are all led out for secondary development
- Onboard WIFI module RST reset button
- ESP-12F supports development tools like ECLIPSE/ARDUINO IDE, and provides ARDUINO reference program
- Onboard 2/4 5V relays, suitable for controlling the working voltage of AC Load within 250V/DC30V
- Onboard power indicator, 1 programmable LED, and relay indicator

Package:
1x 5V Power Supply ESP8266 WIFI Dual Channel Relay Module ESP-12F Development Board


Product: 1x AC/DC ESP8266 WIFI 4 Channels Relay Module ESP-12F Development Board
Function pending:
- Onboard mature and stable ESP-12F WIFI module, large capacity 4M BYTE FLASH
- I/O port of the WIFI module and the UART program download port are all led out for secondary development
- Onboard AC-DC switching power supply module, power supply mode supports AC90-250V/DC7-30V/5V
- Onboard WIFI module RST reset button
- ESP-12F supports development tools like ECLIPSE/ARDUINO IDE, and provides ARDUINO reference program
- Onboard 4 5V relays, suitable for controlling the working voltage of AC Load within 250V/DC30V
- On-board power indicator, 1 programmable LED, and relay indicator

Package Include:
1x AC/DC ESP8266 WIFI 4 Channels Relay Module ESP-12F Development Board

Refund:
- All packages need to wait 30 days (US only need 7-10 days). Please take care of it. Less than 30 days, we can't take a refund.
- If the item is defective when you receive it or you are not satisfied with it, please return it within 14 days for a replacement or money back. But the items must be in factory condition. Please keep in touch with us and double-check the return address before you return it.
- If the item is defective within 12 months, you can return it to us. We will send you a new replacement after receiving the defective item.

About Shipping:
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Payment:
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- Payment must be received within 5 business days of auction closing.
- Please leave a note for your special request (e.g. Colors or Size) in PayPal when you pay the order.
- Any special request cannot be accepted after 24 hours of payment, because most orders will be processed instantly and dispatched the same day.

We keep a close eye on consumer needs,offering continual innovation and product development and an ever-changing core product range.Each product undergoes rigorous development and testing,keeping quality and longevity in mind.In addition,our trained customer service team work hard to ensure that any queries are dealt with efficiently and strive to ensure that you are always provided with the highest level of customer support.

Any questions,please contact us through eBay message or e-mail,We will reply within 1-2 business days(public holidays not included).
Working time:Monday-Friday 9:00 AM-5:30PM(Beijing)

A complete and correct shipping address is essential.
Customers with shipping addresses outside of the U.S.are responsible for all duties and import taxes.Please contact your customs for information.
For any further information about shipping,please contact our customer service team.

We are happy to be able to offer our customers 60 day returns on our products.All items can be returned and a refund will be issued,provided they are returned within 60 days of receipt of purchase.In the unlikely event that you are not happy with your purchase please do not hesitate to contact our customer services team.

We offer at least 1 year guarantee on all of our products.

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