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Welcome to Denkovi Online Electronics Shop!

We offer relay boards controlled via Computer USB, Ethernet, Wi-Fi. You can find here IP I/O controllers, communication converters and home automation kits as well.




Check out our new Customers Projects page :)


Our Featured Products

One wire relay module - 8 SPDT channels for Home Automation - DIN BOX

An eight channel SPDT relay module with DIN Rail Box and 1-Wire interface. Suitable for Home/Industrial Automation applications. This module can be added into existing Raspberry PI project as well.

Price: $63.15
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USB 16 Channel Relay Module, RS232 Controlled - DIN Rail BOX

The relay module is with 16 relays (the type is selectable during purchase). The relays are controlled via PC USB port and it is shown as virtual serial port (virtual com port). It is possible to control directly 220V / 120V devices with your PC usb port up to 15A max. There is flexible software for this usb relay module allowing to be designed simple automation project or control from command line. Numerous software examples can be provided (VB6, BCB6, Java, .NET, Labview, Python)

Price: $109.05
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smartDEN LAN Ethernet 16 Relay Module - DIN Rail BOX

SmartDEN IP-16R is a LAN relay module with 16 SPDT relays for remote control with integrated web server for set-up, snmp-v1 and http/xml support for embedding in other systems. The built-in real time clock allows to organize schedule stand-alone work without connection to computer. Suitable for Industrail and Home automations. Supported by DRM Software plus many source code examples. This is the version with DIN rail box.

Price: $147.75
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USB Four(4) Relay Output Module,Board for Home Automation

This is Four Channel relay board controlled by computer USB port. The usb relay board is with 4 SPDT relays rated up to 10A each. You may control devices 220V / 120V (up to 4) directly with one such relay unit. It is fully powered by the computer USB port. Suitable for home automation applications, hobby projects, industrial automation. The free software allows to control relays manually, create timers (weekly and calendar) and multivibrators, use date and time for alarms or control from command line. We provide software examples in Labview, .NET, Java, Borland C++, Python.

Price: $21.35
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SNMP 8 Relay Module for Temperature Measurement LM35DZ

Ethernet SNMP and Web based 8 SPDT relay module optimized for temperature measurement. 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. We provide SDK for Windows and Linux.

Price: $80.75
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Internet/Ethernet 16 Relay Board - IP, SNMP, Web, Home Automation

IP relay board with 16 SPDT relays (up to 15A each). Additionaly 8 analog inputs are avilable for various sensors. You can connect the board localy or via Internet and control it via computer software, web browser, command line, android or iOS mobile device. Easy to integrate in your code with our software examples.

Price: $101.90
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Ethernet 12 relay module - Web, TCP/IP, Telnet, HTTP API, E-mails

Ethernet IP Relay I/O module for remote management and control with Virtual Serial Port, TCP/IP, Web, HTTP API, Telnet, SMTP (E-mails). It has 12 SPDT Relays (up to 15A), 8 digital inputs (0-12V), 8 analog inputs (0-10V) and one UART port (3.3V). Inputs can be adjusted to control relays (standalone mode) or control outputs of another over the LAN/WAN (box-to-box mode). Relays can be set on daily basics schedule. Suitable for remote control, home automation, data acquisition, sensor processing, alarm systems, PLC applications.

Price: $181.65
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We are happy to remind you that you can get discounts from our web shop. Bellow are given the available discounts based on order subtotal amount:

from $0.00 to $350.00 -> 0%

from $350.01 to $500.00 -> 3%

from $500.01 to $1000.00 -> 5%

from $1000.01 to $2000.00 -> 7%

over $2000.01 -> 10%

For EU Customers

All prices are WITHOUT VAT 20.00%

If you are located in EU and your company has valid VAT number we will reduce the VAT charge AFTER you make the order as our site does not support online VAT number validation. We do it as partial refund. You can use this online tool for VAT validation:

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