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0813 9929 1909 (Fikri)

Phone Office

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1-port RS485 to WiFi converters / RS232 to WiFi converters TMR-WR106 can realize the bi-directional transparent data transmission between RS232/RS485, WiFi and Ethernet. Through simple configuration via Web Server or setup software can assign working details, realize serial data and TCP/IP data package transparent transmission by converter.


Hardware Interface


Products Iteration

Dual power interface & Modbus polling function.


Functional Block Diagram

Serial to WiFi and Ethernet Converter,Functional Block Diagram



RS232 to WiFi converter/RS485 to WiFi converter TMR-WR106 has passed EFT test, when there is instantaneous high current in the circuit (such as lightning, power switch, etc.), it can ensure that the device hardware is not damaged.

Power: 2KV
Ethernet interface 232 485: 2KV





Serial to WiFi and Ethernet Converter,watchdog,hardware circuit, 24 hours stable operation


Work Mode

Transparent Transmission Mode

In this mode, all transmitted/received data is not parsed between the serial port and the WiFi interface.  It minimizes the complexity of user usage.


https Client Mode

In this mode, serial data will be submitted to the https server via https GET/POST/PUT requesting method.


AT Command Mode

In this mode, user can query/set parameters via serial AT commands or network AT commands.


Special Features

Modbus Polling Mode

In this mode, it supports Modbus TCP and Modbus RTU mutual conversion.



Heartbeat Packet Function

RS232 to WiFi converter/RS485 to WiFi converter TMR-WR106 supports network heartbeat packet and serial heartbeat packet. The network heartbeat packet notifies the server that it is in an active state, and it maintains the normal connection with the server by continuously sending the heartbeat packet.Serial port heartbeat packet notifies the serial device that TMR-WR106 is in an active state, and takes the initiative to grab the sensor data can not be initiative to push.




Socket Distribution Protocol

TMR-WR106 suppports SDP, you can add certain header in serial data. It will send the data to differetnt socket by different header. The data received from different
socket will be added different header before they are sent to serial.


Regular Restart Function

TMR-WR106 supports timing and timeout restart function, which makes the system run more stable.



Intelligent Power Data Acquisition Solutions

1.Build-in routing function, supports wired or WiFi networking method.

2.Remotely monitoring meter data, it not only saves manpower and resources but also facilitates the sudden response measures.

3.Rapid collection of data in the monitoring and management platform, it facilitates the city electricity management then to achieve smart city.


Smart Agriculture

1.Monitoring the situation in the greenhouse,such as utilization rate about water resources, fertilizers and so on.

2.To obtain farmland information and monitor sudden natural disasters, then to carry out standardized control measures.

3.Fully automated operation without human intervention, saving manpower and achieving the precise control of agriculture.


Industrial Detection

1.According to the site environment to choose WiFi or wired networking.

2.Real-time detection of air leakage products mixed in bottle buckles.

3.High sensitivity transmission monitoring data, the accurate data can ensure that monitoring without omission.



  1. Support WIFI@2.4GHz 802.11b/g/n wireless standards, RS232/RS485to 802.11 a/b/g/n WLAN Serial Device Server
  2. Support TCP Server/TCP Client/UDP Server/UDP Client/https Client mode.
  3. Support AP, STA, AP+STA.
  4. Support RS232 or RS485 serial ports.
  5. Support electrostatic protection.
  6. Support identity packet function.
  7. Support heartbeat packet function.
  8. Support Websocket function.
  9. Support timeout reset function, timing reset function.
  10. Support Web Server, setup software, serial/network AT command to configure module.
  11. Support hardware reload.
  12. Support usrlink.


Port Number 1 Ethernet Ports: 1 x WAN/LAN
Buffer Rx/TX: Max 16K bytes
Protection 2 KV Electromagnetic isolation for Ethernet port
Network Protocol IP/TCP/UDP/DHCP/DNS/https/ ARP/ICMP/Web socket/httpsd client
Speed Rate 10/100 Mbps, MDI/MDIX
Certificate FCC/CE
WiFi 802.11 b/g/n
Frequency Range 2.412GHz-2.484GHz
Transmit Power 802.11b: +19dBm(Max)
802.11g: +18dBm(Max)
Receive Sensitivity 802.11b: -89dBm
802.11g: -81dBm
802.11n: -73dBm
Interface Standard RS232: 300 - 460.8Kbps
RS485: 300 - 230.4Kbps
Input Voltage DC5 - 36V
Operating Temp. -40° - 85°
Storage Temp. -40° - 125°
Size 86*82.5*25mm(L*W*H)
Network Mode Station/AP/AP+Station
Encryption WEP64/WEP128/TKIP/AES
Work Mode Transparent transmission / serial AT command/
https Client/Modbus TCP<=>Modbus RTU
Setting Command AT+command
Networking Protocol TCP/UDP/ARP/ICMP/DHCP/DNS/https
Max. Client Number in TCP Server Mode 24
Configuration Web sever+ AT command
Warranty 2 years