Report item
Item specifics
  • Brand Name: G-NiceRF
  • Model Number: SV650-433-485
Product Description
2pcs small size Si4432 500mW 3km SV650 RS485 433mhz rf data transmitter and receiver module

SV650 is highly-integrated RF module, which adopts high performance Si4432 from Silicon Labs. It has 2 optional Interface (TTL, 485). SV650 has high sensitivity and 100mW output power to achieve long RF range and reliable RF communication. SV650 comes with many parameters which are configurable, such as:  frequency, data rate, output power, Net ID, Node ID. Users can configure the parameters through PC or customer’s own device. The features of small size, long distance, wide working voltage and simple parameters configuration make SV650 wildly used in many fields. 








Package include:
2pcs SV650 module in 433MHz and RS485 interface
2pcs antenna 
1pcs RS485 USB bridge board



SV Series Application



Electrical Characteristics




Pin Number

Pin Definitions




Configuration parameters enable (low to enable the configuration parameters, the default high-level output)



The module is enabled (low dormancy, the current is less than 5uA, the default high-level output)



Emitted light output pin (active low)



Receive indicator output pin (active low)






Connected to power ground



RF signal output, then a 50 ohm antenna



Connected to the positive power supply (typical 5V)



Serial communication data transmission (@ 485 level, then the output of A)



Serial communication data reception (@ 485 level, then the output B)






Antenna: The antenna is important in the communication. For this module, the match impedance is 50 Ohm. We have many kinds of antenna for customer to choose, please contact the corresponding sales engineer for help, or find the antenna in our website.


USB Bridge board: The USB Bridge is useful for customers to configure the parameters and simply to do communication test with PC. There are 2 types of USB Bridge, which are SU108-TTL, SU108 - 485. SU108 -TTL is for TTL Interface, SU108 - 485 is for 485 Interface:



Payment details

We accept: VISA, MasterCard, Escrow

Packaging & Shipping

  1. Packaging: All sample packed in Yellow carton
  2. Shipping: Free shipping by China Post Registered Air Mail,If you need fast shipping like DHL,FEDEX,ARAMAX,EMS, Pls contact with seller or email Items will be shipped within 3~5 days after we receive the full payment.
  • We do not guarantee delivery time on all international shipments due to differences in customs clearing times in individual countries, which may affect how quickly your product is inspected.
  • If you do not receive item within 60 working days (10 weeks), please contact us to investigate the case.
  • Please note that buyers are responsible for all additional customs fees, brokerage fees, duties, and taxes for importation into your country. 
  • These additional fees may be collected at time of delivery. We will not refund shipping charges for refused shipments




Company Information

We are a technology leading company, who has combined R&D, produce and sales. Our company focused on the application development of RF and sensor module, devoted to provide the most excellent performance RF and integrated digital sensor module to our customers. Meanwhile, we can customize the RF and sensor class ODM project as well.

Our services
  1. We appreciate your order and and we do our best to serve you.
  2. We offer an instant 7 days return policy (7 days after we receive the items).
  3. The returned item has to be in its original condition.
  4. We are able to refund your money without shipping cost.


  1. Your satisfaction and positive feedback are appreciated. Please leave positive feedback and 5 stars if you are satisfied with our items and services.
  2. If you have any problems with our items or services, please feel free to contact us first before you leave negative feedback.
  3. We will do our best to solve any problems and provide you with the best customer services.
  4. For any question, pls feel free to contact us by  email or via  TradeManager.




Packaging Details
  • Unit Type: lot (2 pieces/lot)
  • Package Weight: 0.3kg (0.66lb.)
  • Package Size: 13cm x 8cm x 9cm (5.12in x 3.15in x 3.54in)
Calculate your shipping cost by country/region and quantity.
Quantity: Ship to:
Packaging Details
  • Unit Type: lot (2 pieces/lot)
  • Package Weight: 0.3kg (0.66lb.)
  • Package Size: 13cm x 8cm x 9cm (5.12in x 3.15in x 3.54in)
We support the following payment methods. All payments made on AliExpress are processed by Alipay.