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Item specifics
  • Model Number: SV650-433
  • Brand Name: G-NiceRF
  • Range: 433/470/868/915 MHz
  • Interface: TTL/RS485
  • Channels: 40
  • Net ID: 4 bytes
  • Node ID: 2 bytes
  • Modulation: GFSK
  • Sensitivity: -121 dBm
  • Max output power: 500mW
  • Voltage: 3.3 ~ 7.5 V
  • Temperature: -40 ~ +85'C
Product Description

We are professional manufcturer for "wireless data transmission module" products, so the price is the most competitive and quality can be promised!The more you buy, the lower the price will be! For wholesale business,please feel free to email us for best quotation! OEM/ODM service is OK! we also do drop shipping wordwide!

2pcs/Lot  500mW radio modem wireless 433MHz RS485 Interface 3km distance
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. 


  • Frequency range: 433/470/868/915MHz (Customizable240-930 MHZ)
  • Industrial class 
  • 40 channels 
  • 4 bytes Net ID&2 bytes Node ID
  • Series Data Rate: 1200 ~115200 bps 
  • Air Data Rate: 1200 ~115200 bps 
  • GFSK modulation 
  • RSSI   
  • Interface: TTL/RS485
  • Antenna matching automatically 
  • Bi-directional & Half duplex 
  • Sensitivity:  -121 dBm
  • Max output power: 500 mW  (+27 dBm)
  • Working voltage: 3.3 ~ 6.5 V 
  • Working temperature:-40 ~ +85 °C   
  • Weight::4.0g   
  • Parameters save automatically
  • Remote control telemetry         
  • Security system 
  • Industrial data acquisition 
  • Home automation 
  • Wireless data communication 
  • Access system 
  • Robot control 
  • Wireless PC peripheral
Block Diagram 
Block Diagram
Electrical Characteristics 
   Electrical Characteristics
Application circuit 
                        Application circuit
Typical application
Typical application
Pin definition 
1  2


SV650-433 470 868 915MHz


Package include:
  • 2pcs SV650 modules in 433MHz RS485 interface
  • 2pcs antennas
  • 2pcs USB bridge boards SU108-485


 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:




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.



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






Packaging Details
  • Unit Type: lot (2 pieces/lot)
  • Package Weight: 0.3kg (0.66lb.)
  • Package Size: 25cm x 18cm x 10cm (9.84in x 7.09in x 3.94in)
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Packaging Details
  • Unit Type: lot (2 pieces/lot)
  • Package Weight: 0.3kg (0.66lb.)
  • Package Size: 25cm x 18cm x 10cm (9.84in x 7.09in x 3.94in)
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