RS485 Modbus Sensors


  • Wired RS485 Modbus sensor
  • Up to four physical quantities in single device
  • 0.66˝ OLED display for data readout and setup
  • Two push buttons for an easy on site setup
  • Multiple display setup: ALL, SINGLE, SCROOL
  • Up to 200 slave units on a single twisted line
  • Any DC supply from 4.5 to 28V may be used
  • Low power consumption < 0.2W (no self heating)
  • Bit rate from 1200 to 115200 bps
  • Pluggable screw terminal block for easy wiring
  • Mounted via double sided tape, plastic staps or screws
  • LED indication for Rx and Tx for easy debugging
  • Easy connection to computer, PLC or IoT gateway


DMS100 series is RS485 Modbus sensor with unlimited application potential. Due to its simplicity, the Modbus protocol is a widely used method of communication for sensing and automation. They are used for environmental monitoring, agriculture, smart buildings, health care and so on. Sensors are wired to a twisted pair cable bus, which distributes power and carries data lines. Small OLED display shows latest measuring results and with user buttons is used for easy setup of devices in the field. Supply voltage range include 12V and 24V supply typically found in industry. Thanks to low power up to 200 units may be attached to the single twisted pair cable more than 1km long. Accessing DMS100 sensor network from computer or gateway over USB, Ethernet, WiFi and more interfaces is easy with DSH105 series sensor hub device or any other RS485 compatible converter, PLC or HMI.


Modbus is a openly published and royalty-free data communications protocol originally published by Modicon in 1979 for use with its programmable logic controllers (PLCs). Modbus is an open protocol, meaning that it's free for manufacturers to build into their equipment without having to pay royalties. It has become a de facto standard communication protocol and is now a commonly available means of connecting industrial electronic devices from different manufacturers.


  • Industrial facilities
  • Data centers
  • Offices
  • Museums
  • Storage facilities (food, farmaceuticals, etc.)
  • Agriculture (green houses, vineyards, etc.)
  • Farming
  • and many more...


ProtocolModbus RTU
Display0.66˝ OLED, 48x64 pixels
InterfaceHalf duplex, two wire RS485
Units on busmax. 200
Serial speed1200 - 115200bps
ConnectionPluggable screw terminal block, nom. 1.5mm2
SettingsTwo push buttons or using Modbus
Power supply4.5 - 28VDC
Power consumptionmax. 200mW
EnclosureABS plastic, 50x35x25mm
Operating temperature-10ºC to +60ºC, 0 to 95% (non condensed)
Weightcca 21g

Measured Physical quantities

Different sensor types are available with several physical quantities. Some devices are single physical sensor while others are combining multiple quantities in a single device. Sensor name consists of the device family name plus the sensor type number. For example DMS101 is name for DMS100 series NTC temperature sensor with 01 sensor type number.


DMS10110463Temperature | NTC 10K | -30.0 ~ 105.0℃€40


SKU# 10463

DMS10210464Temperature | NTC 10K, 1m probe | -30.0 ~ 105.0℃€42


SKU# 10464

DMS11010455Temperature and humidity | HDC2010 | -40.0 ~ 125.0℃, 0 ~ 100%€49


SKU# 10455

DMS11210457Temperature, humidity and pressure | BME280 | -40.0 ~ 85.0℃, 0 ~ 100hPa, 300 - 1100hPa€64


SKU# 10457

DMS11610461Red/Green/Blue/White light | VEML6040 | Raw data 4 x 0~65535€49


SKU# 10461

DMS13010465Switch input 1m cable | Logic level 0,1€40


SKU# 10465

DMS13110466Alarm reed switch | Logic level 0,1€42


SKU# 10466

Product Documents