SRM200A Module Quad-mode Sigfox Monarch BLE 5.0 Wifi GPS

SRM200A Quad-mode Sigfox Monarch module

Sigfox WSSFM10R2AT module from Wisol Seong Ji

Wisol Seong Ji WSSFM10R2AT modules (USA + Mexico + Brazil) sold by minimum quantity of 10.
Integrate Sigfox technology at low cost!

€4.45 €3.71
Availability: In stock
  • Buy 50 for €4.32 €3.60 each and save 3%
  • Buy 500 for €4.19 €3.49 each and save 6%
  • Buy 900 for €3.92 €3.27 each and save 12%
Sigfox WSSFM10R2AT module from Wisol Seong Ji is available to buy in increments of 10

Region 2 (USA + Mexico + Brazil) SigFox module from Korean manufacturer Wisol Seong Ji, reference SFM10R2 or WSSFM10R2AT.

This module will allow you to integrate and use the SigFox LPWan network in your IOT project design, offering a very simple data transmission functionality.

Sigfox Verified
  • Ultra-Small foot-print 13mm x 20mm x 2.3mm
  • Simple control by AT commands
  • Sigfox Verified certified module


Thanks to its small size, the Wisol SFM10R2 module allows a very small board design compared to the existing Sigfox modules on the market.


Sigfox logo

The SigFox network allows sending 12 bytes messages long.
The Sigfox network is nationaly available in many European countries.
Please check the coverage here :


Technical specificatins:

  • Power supply: +2.7V~+3.6V
  • Tx current: 200mA (Typ)
  • Current Rx: 40mA (Max)
  • Communiation: Serial UART
  • Protocol: AT Command
  • Type: SMD
  • PCBA Size: 13mm x 20mm x 2.3mm
  • Chipset : AX-SFUS-1-01/ ON Semiconductor
  • Tx Frequency : 902.2MHz
  • Rx Frequency : 905.2MHz
  • Data rate : 600bps
  • Tx Output Power : +24dBm(max.)@600bps
  • Rx Sensitivity : -129dBm(min.)@600bps


Communication commands:

The module is controlled with serial AT commands sent on TX/RX pins.
Below is the communication specification and AT commands to use.

Serial communication: 9600 bauds, 8bits, 1 stop bit, no parity
AT commands:

Communication test: AT
Get Module ID: AT$I=10
Get PAC code: AT$I=11
Send a SIGFOX message: AT$SF=XXXXXXXXXXXX (Hexadecimal value)
Send a SIGFOX message with downlink frame: AT$SF=XXXXXXXXXXXX,1 (Hexadecimal value)

More Information
Country of Manufacture South Korea
Manufacturer Wisol-Seong ji
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