Description:

The 5V dual WiFi relay module uses ESP-01 as the WiFi module and is compatible with 8 bit MCU chip. Only a simple configuration process can realize the wireless control of the 2 way relay by using the mobile phone APP .

Function:

1.Onboard ESP-01 WiFi modules and high performance microprocessor STM8S103 .

2 The module has 2 operating modes of work:

Mode 1: mobile phone is directly mounted on WiFi module.

Mode 2: mobile phones and WiFi modules are equipped on routers simultaneously

Additional function: it can also be used as USB relay when ESP-01 is pulled out.

3.Transmission distance:

In an open environment, the maximum stable transmission distance is 100M when the mobile phone is mounted on the WiFi module.

4. When the WiFi module and mobile phone are carried on the router at the same time, the transmission distance depends on the signal strength of the router.

5. Onboard 12V, 10A//250V AC 10A//30V DC relay, which can be continuously pulled for 100 thousand times, has diode discharge protection, short response time.

6 .The use of Smartcongig technology in the mobile phone on the APP ESP-01 WiFi module to complete the account and password configuration, configured username and password memory function.

7.Board mode selection and real time working status indicator.

8. Reserved UART debug interface and STM8 SWIM program download interface.

9. Board size: 59*40mm.

SHIPPING AND DELIVERY

We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:

Location	*Estimated Shipping Time
United States	10-20 Business days
Canada, Europe	10-20 Business days
Australia, New Zealand	10-30 Business days
Central & South America	15-30 Business days
Asia	10-20 Business days
Africa	15-45 Business days

*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.

REFUNDS & RETURNS POLICY

Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.

Refunds

Your satisfaction is our #1 priority. Therefore, if you’d like a refund you can request one no matter the reason.

If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.

If you received the wrong item you can request a refund or a reshipment.

If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
Your order did not arrive due to exceptional circumstances outside the control of TechOiO (i.e. not cleared by customs, delayed by a natural disaster).
Other exceptional circumstances outside the control of techoio.com

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.

Exchanges

If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

A***v

26 Jan 2020

Verified Buyer

You need to specify which chip on the board. It turned out to be Nuvoton n76e003at20. Powder order pay attention.

G***n

21 May 2019

Wonderful product. Great delivery, great supplier.

P***A

14 Jan 2019

VERY fast sending and VERY nice product. Thanks ! :-)

C***c

10 Dec 2018

Приехало вовремя спасибо продавцу, но почта россии это не что. Упаковано нормально, но все мятое, неизвестно живые платы или нет, на вид вроде все целое.

C***e

29 Nov 2018

nice

S***v

18 Oct 2018

Заказал две релюхи, пришли очень быстро. С одной проблем не было установил проги, подключился,реле щелкают. Ко второй так и не смог подключиться прогой, по вайфаю цепляюсь и на этом все, прога не хочет подключаться. Все равно собирался прошивать, в итоге прошил и все стало работать как мне надо.