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Item specifics
  • Model Number: SV611
  • Brand Name: G-NiceRF
  • Operating voltage range: 3.3-7.0V/ 4.5~5.5V
  • Reveive current: 25mA/ 32.7mA/ 34mA
  • Emission current: 95mA
  • Sleep current: <5uA
  • Interface type: TTL/ 232/ 485
  • Transmit power range: -1~20dBm
  • Receiving sensitivity: -121dBm
  • Size: 43.25*26*9.4
  • Operating Temperature Range: -40~+85℃
  • Outline Dimensions:: 43.25mm 26.45mm 9.4mm
Product Description


2pcs/lot 915MHz RS485 Interface| 20dBm Transmit power  |100mW Wireless RF Module SV611



SV611 is highly-integrated RF module, which adopts high performance Si4432 from Silicon Labs. It has 3 optional Interface (TTL, 232, 485). SV611 has high sensitivity and 100mW output power to achieve long RF range and reliable RF communication. SV611 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 SV611 wildly used in many fields.

We have 433MHz,868MHz,915MHz Frequency for your optional,Pls tell us what frequency you need when you place the order, Our default shipping frequency is 433MHz 




* 433/470/868/915 MHz (Customizable 240-930 MHZ)

* Interface:TTL/RS232/RS485 (Optional)

* 40 channels

* 4 bytes net ID

* 2 bytes node ID

* Multiple air data rate

* GFSK modulation

* Bi-Direction communication

* Parameters configurable

* Parameters saved even powered off

* Sensitivity:-121 dBm

* Max output power:100 mW/20dBm 

* Voltage:3.3 ~ 7.0 V/TTL

* Voltage:4.5 ~5.5 V/232,485

* Temperature: -40 ~ +85 °C



*Remote telemetry                            
*Auto meter reading
*Security systems
*Data logger
*Wireless data communication
*Building residential automation and security
*Healthy monitoring
*Wireless PC peripherals
*Access Control System
*Robot control

Application circuit:

The typical schematic circuit is as below: 
Note:The ground pin of the module and device should be connected together.
sv611 Application circuit

Typical application:

sv611 Typical application


Electrical Characteristics 

SV611  Electrical Characteristics




SV611-433 470 868 915MHz-4

SV611-433 470 868 915MHz-2


What does include in the package:

2pcs SV611 915MHz Module  with RS485 Interface

2pcs Rubber Antenna

1pc RS485 USB Bridge board



sv611 Schematic




sv611 pinout



 Antenna: It is an important part of the communication system. Its feature directly affects the performance of the communication system. The match impedance of module is 50 ohms, we recommend that users adopt standard spring antenna.

sv611 antenna


USB Bridge Board:  Modules is needed by configuration tool to configure the relative parameters. The Company supplies a USB interface matching plate adapter with TTL/RS232/RS485 level, so that users can quickly and easily with the PC side communication.



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: 15cm x 10cm x 6cm (5.91in x 3.94in x 2.36in)
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Packaging Details
  • Unit Type: lot (2 pieces/lot)
  • Package Weight: 0.3kg (0.66lb.)
  • Package Size: 15cm x 10cm x 6cm (5.91in x 3.94in x 2.36in)
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