Product Description

SI4438 Serial Transmission Micro Power Consumption 5.5V Wide Voltage UART Wireless Wake-Up 433MHz Wireless Digital Transmission Module 


SI4438 Serial Port Micro Power Consumption 5.5V wide voltage UART Wireless Alarm Clock 433MHz Digital Wireless Transmission Module

Features:

UART interface, wide voltage 3.3v-5.5v,

Wireless alarm clock, 433M high speed rate 0.6-500kbps.



Automatic power-up, no additional operation required,

Direct serial port transmitting data.



Wide voltage design, integrated LDO power management,

Module can operate normally in the 3.3v to 5.5v voltage range.

Can be used directly without additional design.



Industrial grade power management and serial level conversion chip.





Dual antenna interface, the module provides an external antenna.



Supports wireless wake-up function, no need to master active wake-up,

Remote control can wake up electronic devices, fast and efficient.



Two operating modes, standard mode and wireless wake-up mode.



433M high-speed communication, stronger anti-interference capability,

Faster transmission and greater range.



Multiple transmission modes, 32 data channels for free choice, 256 configurable identifiers.



Fixed point communication mode, the module has its own internal address filter,

The same channel, rate, PID can communicate with each other.



Broadcast communication mode, same channel, same rate,

PID can communicate with each other.


Welcome to the XINTE Brand storefront. Our Stores is a leading global data storage brand that empowers you to create, experience and preserve your digital content across a range of devices. Shop leading storage solutions, desktop drives, portable HDDs, USB flash drives, SD cards and more now!

1. All price does not include any taxes or extra fees. We are not responsible for the problems caused by customs clearance. 

2. Orders processed timely after the payment verification.

3. We only ship to confirmed order addresses. Your order address MUST MATCH your Shipping address. 

4. The images shown are not the actual item and are for your reference only. 

5. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit time may vary, particularly during the holiday season. 

6. If you have not received your order after the Estimated Delivery of Shipping Method, please contact us in advance. We will trace your order and get back to you asap.

(Please notice that we can't decide your decisions about choosing to ship methods, which means you need to check carefully with the estimate delivery time and promise delivery time) Your satisfaction is our top priority!


1. You have 30 days to contact us  No reason to return within 30 days after signing，The shipping cost is Seller . 

2. All returned items MUST BE in the original packaging and you MUST PROVIDE us with the shipping tracking number, specific reason for the return, and your order ID. 

3. We will refund YOUR FULL WINNING BID AMOUNT, upon receipt of the item in its original condition and packaging with all components and accessories included, AFTER BOTH Buyer and Seller cancel the transaction from ebay. OR, you may choose to have a replacement. 

4. We will bear all the shipping cost if the product(s) is (are) not as advertised.


We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important. We request that you contact us immediately BEFORE you give us neutral or negative feedback so that we can perform up to your satisfaction. 

It is impossible to address issues if we do not know about them!

We can be contacted at any time through eBay messages if you have any questions, comments or product requests. We will respond in a timely manner and will do our best to help you out. We encourage our customers to contact us with any questions or concerns. We'd like to be sure you are completely satisfied with your purchase.
About Us

Welcome to the XINTE Brand storefront. Our Stores is a leading global data storage brand that empowers you to create, experience and preserve your digital content across a range of devices. Shop leading storage solutions, desktop drives, portable HDDs, USB flash drives, SD cards and more now!

Shipping

1. All price does not include any taxes or extra fees. We are not responsible for the problems caused by customs clearance. 

2. Orders processed timely after the payment verification.

3. We only ship to confirmed order addresses. Your order address MUST MATCH your Shipping address. 

4. The images shown are not the actual item and are for your reference only. 

5. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit time may vary, particularly during the holiday season. 

6. If you have not received your order after the Estimated Delivery of Shipping Method, please contact us in advance. We will trace your order and get back to you asap.

(Please notice that we can't decide your decisions about choosing to ship methods, which means you need to check carefully with the estimate delivery time and promise delivery time) Your satisfaction is our top priority!


Returns

1. You have 30 days to contact us  No reason to return within 30 days after signing，The shipping cost is Seller . 

2. All returned items MUST BE in the original packaging and you MUST PROVIDE us with the shipping tracking number, specific reason for the return, and your order ID. 

3. We will refund YOUR FULL WINNING BID AMOUNT, upon receipt of the item in its original condition and packaging with all components and accessories included, AFTER BOTH Buyer and Seller cancel the transaction from ebay. OR, you may choose to have a replacement. 

4. We will bear all the shipping cost if the product(s) is (are) not as advertised.


Feedback

We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important. We request that you contact us immediately BEFORE you give us neutral or negative feedback so that we can perform up to your satisfaction. 

It is impossible to address issues if we do not know about them!

Contact us
We can be contacted at any time through eBay messages if you have any questions, comments or product requests. We will respond in a timely manner and will do our best to help you out. We encourage our customers to contact us with any questions or concerns. We'd like to be sure you are completely satisfied with your purchase.
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