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RS485/232 WiFi Module


  • Wirelessly enable existing equipment
  • Sleep modes for a long battery life
  • Can create a network or join existing networks
  • 12 or 24 VDC Powered
  • Connect sensors and meters to the Internet
  • RS-232 and RS-485 Communication built in for high compatibility with equipment
  • ~500µA sleep current. ~16mA awake


Technical Notes

Manuals & Datasheets


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he WM-485/232 uses 802.11 b/g WiFi technology to wirelessly enable equipment in hard to reach or dangerous locations. By connecting your manually checked meters or sensors to the WM-485/232, no longer will you have to be within arms reach to see your data.

Designed for field use, the WM-485/232 is Class 1 Div 2 approved. To maintain ease of use, the WM-485/232 accepts a wide power input range with clearly labeled screw terminals. Low operating power gives this module a long life. When paired with the SMC-02 solar controller or in a full SMS-1212 system, you’ll never have to worry about it losing power.

The WM-485/232 when used with a Virtual COM Port redirector means you can use your existing software as you always have, but from another location completely.

Able to start a network, you don't always need existing infrastructure to take advantage of WiFi. You can connect directly to the WM-485-232 with your laptop easily, or if existing WiFi networks exist, the module can be made to join them and be accessible from virtually anywhere.

Part Numbers
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  • 1 - RS-485
  • 1 - RS-232
Power Requirements

Quiescent Current: < 540 µAmp (Typical)
Awake Current: 16 mA
Voltage Input Range: 6 to 30 VDC

Case Material



Size (cm) 9 x 2.25 x 7.5
Size (inches) 3.5 x 0.88 x 2.95
Weight 0.025kg (0.055lbs)

Operating Temperature Range

Standard: -40 to +60°C


Class 1 Div 2 Groups C, D, T3 CSA Std C22.2 No 213, 14, E79-15-95