which one is receiver?

SYN480R for receive, SYN115 for transmit

Is there documetation on how to use these deviives?

No documentation. I asked them for it and they sent a pdf, all in Chinese.

Suggestion of design/length for simple wire antenna?

I used a Coil antenna that’s 1/8 wavelength that worked quit well. Probably because the Sensor I purchased that was the transmitter used same thing. There are certainly web site’s out there with the calculation for full, ½, ¼ and 1/8 wavelength antenna length. Simple magnet wire will do. If you are way out there isolated, you can strip an old car ignition coil down for its wire. Note the Transmitter and receiver do not need to have the same wavelength antenna to work, but it does help, and the closer to full wavelength you get the better the reception or transmission. If you are really board, you could order or build a forward/reflective meter and create your own tank circuit to match the antenna. I won’t get into any more detail as it can get complicated.

Which one is syn480r which one is syn115

Referring to picture 2 on the detail page, the module in the upper left corner is SYN480R and the module in the lower right corner is SYN115.

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Alinan 5Sets 433MHZ SYN115 SYN480R Wireless Transmitter & Receiver Module Kit Ask/OOK Chip PCB

Product ID: 433131662

Details

Brand
Alinan
Connectivity Technology
Wireless
Item Weight
0.01 kg
Product Dimensions
0.68"L x x
Special Feature
Built-In Chips

📏Compact PCB size under 0.7 inches for sleek integration

📡433MHz frequency for reliable wireless comms

🔋Low power consumption: 1.8-5.5V supply range

₹ 1822

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Description

🚀 Elevate your wireless game with Alinan’s sleek 433MHz modules — connect smarter, faster, everywhere!

PLUG PLAY 5 SET KIT - Get 5 transmitter-receiver pairs ready to deploy, accelerating your IoT or remote control innovations.
ULTRA LOW POWER DESIGN - Operate efficiently between 1.8V and 5.5V, perfect for long-lasting projects and mobile setups.
COMPACT VERSATILE PCB - Tiny footprint (under 0.7 inches) fits effortlessly into any prototype or product design.
TRUSTED SUPPORT QUALITY ASSURANCE - Backed by responsive customer service and guaranteed satisfaction to keep your projects on track.
SEAMLESS 433 M HZ WIRELESS TRANSMISSION - Harness the power of SYN115 & SYN480R chips for crystal-clear ASK/OOK communication.

The Alinan 5Sets 433MHz SYN115 SYN480R Wireless Transmitter & Receiver Module Kit features integrated ASK/OOK chips optimized for reliable 433MHz communication. Each compact module supports low power operation (1.8-5.5V) and offers transmission rates up to 10kbps. This 5-pair kit is ideal for professionals and makers seeking efficient, plug-and-play wireless solutions with guaranteed support.

Specifications

ASIN	B09L7JJXXB
Additional Features	Built-In Chips, Satisfaction Guaranteed Support
AntennaDescription	433 MHz Antenna
Audio Output Mode	internal
Audio Output Type	proprietary_433MHz
Best Sellers Rank	#96 in MP3 Player FM Transmitters
Brand	Alinan
Color	Blue
Compatibility Options	Smartphone, Tablet, Laptop, Home Stereo System
Compatible Devices	Smartphone, Tablet, Laptop, Home Stereo System
Connectivity Technology	Wireless
Connector Type Used on Cable	others
Control Method	App
Customer Reviews	4.5 4.5 out of 5 stars (16)
Hardware Interface	Radio Frequency
Human Interface Input	Unknown
Installation Type	wireless
Item Dimensions L x W x H	0.68"L x 0.46"W x 0.46"H
Item Weight	0.01 kg
Manufacturer	Alinan
Model Name	SYN115 SYN480R
Mounting Type	Wall Mount
Number of Channels	1
Supported Application	[Any Application]
Supported Media Type	MP3, WAV
Supported Standards	433 MHz
UPC	701715497238
Warranty Description	yes
Wireless Compability	Radio Frequency

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₹ 1822

Duties & taxes included

In stock

Sold byAmazon IndiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to India.

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Join PRO →

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