G-NiceRF SK108U 100mW- 5W bi-directional switch control industrial four channels remote control PC remote control rf module

Feedback Ratings
US $142.00 / Piece |1 Piece (Min. Order)
- + Pieces available
0piecesselected, US $in total
View Details
Please confirm the quantity of the goods.
Report Suspicious Activity
Quick Details
Model Number:
Brand Name:
Place of Origin:
Guangdong, China (Mainland)
work frequency:
work voltage:
output power:
1400-7000m in open area

2pcs/lot SK108U 100mW- 5W bi-directional switch control industrial four channels  remote control  PC remote control & serial control switch rf module 



Include in the package:

1pcs SK108-Tx remote control transmittor rf modules(100mW-5W)

1pcs SK108-Rx remote control receiver rf  modules

2pcs SW433-XP1M Sucker antennas (cable length:1 meter)          

1pcs power supply adaptor (1W)

1pcs power supply adaptor (1W-5W)



 Pice is according to the SK108-Tx transmitter,1 set is about USD61.00-USD142.00.

 SK108U includes SK108U-Tx and SK108U-Rx. SK108U-Tx is an industrial serial control transmitter, it works with SK108U-Rx to build wireless switch control system. SK108U-TX is serial interface which can connect with PC and other serial devices.
One SK108U-Rx has 4 channels relay output. One SK108U-Tx can control multiple SK108U-Rx. The frequency of the SK108U-Tx and SK108U-Rx can be set to avoid frequency interference.
In hardware SK108U-Tx is the same as our SV series module, which has different output power and different interface for option.

SK108U-Rx is same as SK108 in hardware but different firmware.


Product Description



  • Up to 3Km line-of-sight in open area

  • SK108U-Tx is optional (100mw~5W)
  • SK108U-Rx is optional (1W)
  • Frequency Band : 433 ,470,868,915MHz(Optional)

  • 40 predefined channels for SK108U-Tx
  • 16 predefined channels for SK108U-Rx
  • Parameters configurable by PC software/ Remote controller/ UART Command

  • Real-time/Timing working mode for optional

  • GFSK modulation

  • Bi-directional wireless switch control

  • Sensitivity up to 121 dBm

  • Indicate and alarm when battery low

  • Working voltage 9 ~ 30 V

  • Working temperature range: - 40 ~ + 85 ° C

  • Weight: 143g


  • 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:

 1) Four channels output(LED Light and relay) SK108U-RX Module has total 4 channels output(OUT1~OUT4),the status of output (open/close ) is controlled by SK108U-Tx.
2) DIP switch Settings(valid when power on again)
DIP8—Pull to “ON ” position
DIP7—Pull to “ON ” position
DIP5—Mode selection
ON—Normal working mode
OFF-- Configuration mode
DIP4~1—Working frequency channel selection,total 16 groups, frequency is configurable by PC software.






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



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. 

 SK108U 100mW- 5W bi-directional switch control industrial four channels  remote control  PC remote control & serial control switch rf module SK108U 100mW- 5W bi-directional switch control industrial four channels  remote control  PC remote control & serial control switch rf module SK108U 100mW- 5W bi-directional switch control industrial four channels  remote control  PC remote control & serial control switch rf module 


You May Like
Not exactly what you want? 1 request, multiple quotations Get Quotations Now >>
You May Like