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SNMP 8 Relay Module for Temperature Measurement LM35DZ with DAEnetIP2v2

Ethernet SNMP and Web based 8 SPDT relay module optimized for temperature measurement, based on DAEnetIP2 v2. Additionaly it has 8 bit TTL I/O port and 8 x 10 bit analog inputs for temperature sensors or 0-10VDC. The device is suitable for home automation, industrials, temperature measurement via Internet/Ethernet or remote management and control of electrical devices. Supported by DRMv3 software. We provide SDK for Windows and Linux. Works with Home Assistant, Domoticz and OpenHAB home automation systems as well as with Node-RED IoT platform. Now with FREE Android and iOS App!

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Price: $88.50
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Important Information

This module (DAEnetIP2 v2 based) is the new (improved) version of SNMP 8 Relay Board for Temperature Measurement LM35DZ (DAEnetIP2 based). To see the differences between DAEnetIP2 v2 and its predecessors, please take a look here



  • Based on DAEnetIPv2 controller
  • 10/100 Mb Ethernet interface with Link/Activity Led
  • Power supply voltage, selectable during purchase: (No protection against overvoltage and inverse polarity):
    • 12VDC / 300 mA
    • 24VDC / 200 mA
  • 8 SPDT relay channels (the type depends on the stocks quantity in our store):
    • TONGLING - JQC-3FF-S-Z (10A / 250VAC, 15A / 120VAC, 10A / 28VDC)
    • SUNHOLD - RAS xx15 (10A / 250VAC, 15A / 120VAC, 15A / 24VDC) 
  • 8 analog inputs with 10 bit resolution. Can be used for one from the both applications:
    • either LM35DZ temperature sensor monitoring (from 0°C up to 100°C)
    • either 0-10VDC industrial voltage measurement
  • 8 bit configurable digital TTL I/O port
  • Standart protocols: ARP, IP, ICMP (ping), DHCP
  • Supports snmp v1 (snmpset, snmpget, snmptrap), HTTP (web server with autorization)
  • Ports for SNMP (161) and HTTP (80) can be changed
  • Two MAC addresses protection
  • It can be configured with SNMP requests or web browser
  • Integrated WEB server for all functions/parameters access. I/O lines labels can be changed via browser
  • HTTP API commands for getting/setting the I/O states (with basic access authentication)
  • Reset of the relays on incoming/outgoing ping timeout.
  • Function "load outputs states from EEPROM on boot"
  • The ADC web page shows Temperature (°C and °F) and Voltage (0-10V)
  • Each I/O line can be named by user via web browser
  • It can send traps according analog ADC level
  • Analog Inputs may be referred to control the relay according their level
  • PCB parameters : FR4 / 1.5mm / two layers / metallized holes / HAL / white stamp / solder mask / Extra PCB openings for better voltage isolation / Doubled PCB tracks for better voltage isolation
  • PCB Dimensions suitable for mounting into DIN enclosures - 122 x 82 x 20 (mm)
  • Supported by DRMv3 Software - New;
  • Software by Denkovi - DRM Software (Windows/Linux), DAE-iModules App for iOS, DAE-aModules App for Android;
  • Third party software - more info here;
  • Supported by Home Assistant home automation software - New;
  • Supported by openHAB home automation software;
  • Supported by Domoticz home automation software;
  • Supported by Node-RED IoT platform;
  • Software examples for PHP, JAVA, .NET and NI LabView and more - here;
  • Please read the user manual before use the device! You may download it from - here


The kit includes

  • 1 x SNMP Eight Relay Module for Temperature Measurement LM35DZ
  • 1 x LM35DZ sensor (gift)


Application Examples



Blog diagram

Ports description



Access from Home Assistant

Home Assistant is very powerful home automation system. Please checkout our application note for more information.




Access from OpenHAB

OpenHAB is a third party open source free home automation software. Run your server on Linux, macOS, Windows, Raspberry Pi, PINE64, Docker, Synology... Access it with apps for the web, iOS, Android and others. Use a powerful and flexible engine to design rules, with time and event-based triggers, scripts, actions, notifications and voice control.


The device can be accessed via SNMP requests. More information about the integration with our hardware - or contact with us.




Access from Domoticz

Domoticz is a free open source popular home automation software which can run on Windows, Linux, MAC, Rasberry PI and others. It is a home automation system design to control various devices and receive input from various sensors. Access it with apps for the web, iOS, Android and others.


More information about how to connect and use it with our hardware - or contact with us.




Access from Node-RED

Node-RED is a flow-based programming platform for the Internet of Things. We prepared small example for communication between Node-RED and our device. More info about Node-RED and denkovi modules: here

You can download the example Node-RED flows from here: SNMP and HTTP




Access the relay module from mobile devices

iOS App DAE-iModules



DAE-iModules DAE-iModules DAE-iModules



Android App DAE-aModules


Android app on Google Play





The video bellow shows how you can control DAEnetIP2 based device - SNMP 8 Relay Board LM35DZ. Any other Denkovi Ethernet Device from this list can be acessed with same success from your iOS device via DAE-iModules.



Some useful information about DAE-iModules/DAE-aModules and SNMP 8 Relay Board LM35DZ:

  • Select device DAEnetIP2v2 or IP 8 Relay LM35DZ (V2). You must be sure the IP, UDP Port and SNMP community are correct, otherwise it won't enter into the device
  • To scale the LM35DZ analog inputs in order to show temperature direclty in Degrees C, you must do the following settings for P6: Units: °C, Value at 0: 0, Value at 1024: 204
  • To scale the LM35DZ analog inputs in order to show temperature direclty in Degrees F, you must do the following settings for P6: Units: °F, Value at 0: 32, Value at 1024: 399
  • To scale the 0-10V analog inputs in order to show the value direclty in volts, you must do the following settings for P6: Units: V, Value at 0: 0, Value at 1024: 963
  • To connect and scale the analog inputs with sensors, please refer to this link:



Access via software DRMv3

This device is supported by DRMv3 Software.

The device can be found in the device list under the default name: DAEnetIP2v2 IP 8 Relay LM35DZ








HTTP API Commands

DAEnetIP2 v2 i/o lines can be controlled/accessed via HTTP API commands and basic access authentication is required to do that.


The digital outputs (P3 and P5) can be controlled by sending this HTTP command:


admin:admin are the username:password
device.ip.address is the DAEnetIP2 v2 IP address (by default it is
01=00 is the state of P3 DO
02=FFis the state of P5 DO
For example:
The i/o states (P3, P5, P6) can be retreived by sending this HTTP command:
it will be received javascript file with several variables and one of them is:
var IO=new Array (0xFF, 0xFF, 0x80, 
0x00AB, 0x0049, 0x0118, 0x014A, 0x012F, 
0x003E, 0x0029, 0x01DD)
Bytes 0 and 1 are the digital I/O states (in hex format)
Bytes 3...10 are the Analog inputs values (in hex format)
For example:

Control via command line

Net-snmp is free command line utility for windows which allows you to execute snmp commands from command line, BAT files, BASH scripts or any other sofwtare that can execute external .exe file or commands from command line. The instructions file how to install net-snmp and example commands can be downloaded from here.







Denkovi software

  • DAE-iModules - App for iOS mobile devices, support link here
  • DAE-aModules - App for Android mobile devices, support link here
  • DRMv3 Software - software for monitoring, control and configuration - here
  • DRM Software - software for controlling relays - here



Third party software




Release Date Current  Version Mib File Update Utility Version History Note
Feb 2024


Here Denkovi Finder   Version History Instructions how to update - will be sent by request only



Software examples

  • Node-RED IoT platform - example communication flows in SNMP and HTTP. More about Denkovi modules and Node-RED: here.
  • C# .NET Express 2010 - Sets the outputs via snmp v.1 with timeouts
  • VB .NET Express 2010 - Very simple demo. It demonstrates how to set and get DAEnetIP2 ports values
  • Java (Netbeans) - Example for accessing DAEnetIP2 controller. Works in Linux / Windows / Mac
  • PHP - Example for controlling the 16 digital outputs and reading the ADC (tested with WAMP with snmp)
  • labVIEW 2011 -  basic snmp manager for DAEnetIP2 built with labVIEW.
  • Node.js (SNMPv1) - example how to communicate with the module using SNMPv1 set/get requests in Node.js.
  • Python - Example how to set/get the DAEnetIP2v2 status using SNMP requests
IP controller + relay
LAN Eight Relay Board

by Dmitry Ershov, 18 Sep 2021

This board constantly working for almost 8 years. It is used as a bridge between the pellet boiler, solar heating system and my own heating control software. Over the entire period of use, this board has never failed.


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