G-NiceRF SK509 5W 8Km wireless rf remote control switch for agricultural irrigation

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US $77.00 / Piece |2 Pieces (Min. Order)
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Place of Origin:
Guangdong, China (Mainland)
Brand Name:
Model Number:
output power:
working voltage:
7000m in open area

SK509 5W bi-directional switch control industrial 4 path remote control  switch rf module   8Km in open area



Include in the package:

1pcs SK509 remote control  switch rf module

1pcs SW433-XP1M Sucker antennas (cable length:1 meter)          




Pls leave a message confirming which frequency band  you need when you place order! Our defuat shipping frequency is433MHz



SK509 is an industrial four channels wireless switch control module with pairing function, it provides maximum four channel signalinput and maximum four channel control output. It features in simple interface and reliable performance. The parameters can bemodified by PC software / UART command / remote controller (SK509-S). DIP switch on the module can used to change operating frequency (maximum 16 group),operation mode etc. Using this module, user canreplace wired device with the wireless connection, which significantly reducethe cost and save much time.


Product Description



  •  Distanceup to 8Km in open area

  • 16 channels to choose

  •  Parameters set wirelessly by PC

  •  Real time / Timing mode

  • GFSKmodulation

  • Antennamatches automatically

  • Bi-directionalswitch control

  • Sensitivityup to -121 dBm

  • Max.output power:5 W

  • Workingvoltage: 9~30 V

  • Workingtemperature:-40 ~ +85 °C

  • Weight:180g


  • Remote control switch control

  • Security system

  • Home automation remote sensing

  • Wireless remote telemetry

  • Building automation and security

  • Access control system



Electrical Specification

Note: Below parameters base on 12V power supply/ 25℃ testing environment.




 product show




Application circuit

The typical schematic circuit is as below:





Typical application: 

 The input port is pulled up internally, leave open or connect with 3.3V will result in high level, it is low level when connect to GND.


High level will make the output of the other side short out. And low level will make the output of the other side open. Below is regular connection:


Pin Definition:

 Dip switch Settings (valid when power on again )
DIP8—Normal working mode selection
ON—Real-time mode ( In this mode, when state changes in input port , it transmit signal immediately)
OFF—Timing mode (Signal transmitted at the predefined time interval according to the setting of DIP6)
DIP7—master/slave selection
ON—the master
OFF—the slave
DIP6—Time interval selection of timing mode
ON—Slow time (configurable, default 30S)
OFF—Fast time (configurable, default 2S)
DIP5—Mode selection
ON—Normal working mode
OFF—Configuration mode (Wireless setting on PC via configuration module SK509
DIP4~1 —Working frequency channel selection, total 16 channels(default channel interval: 0.5M), frequency is
configurable through PC software / UART Command/ Remote controller SK509
Relationship between DIP switch and working frequency channel: 









Machinism Dimensions:




How to connect 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.



 Tips for antenna:

*Don’t close to the ground, metal, magnet, big current;

*If you are using the sucker antenna, pull the wire as straight as possible, the sucker foundation should stick with metal


  Distance Test:

Packaging & Shipping


1.  Items will be shipped within 3~5 days after we receive the full payment.

2.  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.

3.  If you do not receive item within 60 working days (10 weeks), please contact us to investigate the case.

4.  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.


We can provide EMS, DHL, Fedex, TNT China Register Post Air Mail and etc.

* All free shipping on our store are mostly China Registered Post Air Mail.

* If you need fast shipping like DHL or other, you will need extra payment, pls contact sales to evaluate the price.

Our Services

1, Any inquiries will be replied in 12 hours.

2, OEM/ODM service.
* Customer's own logo is available;
* We help customer realize their own thinking, idea, design;

3,After-sale Service.
* All products passed QC before shipping;
* All products will be well-packed before shipping;
* All products have 1 year guarantee. Damaged item is free to change or 
return in warranty period.

4, Payment Terms: T/T,Western Union/paypal/MoneyGram.
5, Shipping Company: China air post/HK,Singapore post/EMS/DHL/FEDEX.


A) Are you factory?
1)Yes, we are factory, we have our own R&D team, all products are developed by our own R&D team.

B) Do you offer technology support?
1) Yes, we offer technology support and ODM&OEM service. 

Company Information

Our company is engaged in researching, developing, producing and selling IOT(internet of things) products. We devoted ourselves on providing good RF modules, walkie talkie modules and integrated digital sensor modules. Meanwhile, ODM and OEM projects are welcomed. With more than 10 years experience of product design in RF and sensors, we have earned a good reputation among our customers. 

 SK509 5W bi-directional switch control industrial 4 path remote control  switch rf module   8Km in open areaSK509 5W bi-directional switch control industrial 4 path remote control  switch rf module   8Km in open areaSK509 5W bi-directional switch control industrial 4 path remote control  switch rf module   8Km in open area