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GLS, fixed cost at 32.50 USD per order.
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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: http://ec.europa.eu/taxation_customs/vies/

USB Relay Boards

USB relay boards and modules controlled via Virtual Serial Port or BitBang Mode.

 

Comparison table with differences between USB Relay Boards

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Products

USB Relay Module 4 Channels, for Home Automation - v2

The second version of our popular USB 4 Relay Board with several improvements. It comes with MCP2200 chipset, 4 SPDT Relays each rated with up to 10A, relays states saving in internal EEPROM and improved USB interference resistance. Suitable for home automation applications, hobby projects, industrial automation. The free DRM 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 various software examples.

-22%
Price: $16.00
List Price: $20.50
discounts info
Discounts info
Price: $16.00
List Price: $20.50
Discount: $4.50 (21.95%)
View details

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.

-21%
Price: $16.85
List Price: $21.35
discounts info
Discounts info
Price: $16.85
List Price: $21.35
Discount: $4.50 (21.08%)
View details

USB 4 Relay module - thermoregulator with sensor TCN75A

USB relay board with four channels and connected TCN75A temperature sensor to it.. The relays can handle up to 7A(10A) at 220VAC/120VAC and the sensor can measure temperature from -40 C up to +100 C with accuracy +-0.5 C (typical) and +- 3 C (max). The software we provide makes this usb relay card ideal for applications like temperature monitoring (USB thermometer), temperature loging or simple usb thermoregulator.

-16%
Price: $24.35
List Price: $28.85
discounts info
Discounts info
Price: $24.35
List Price: $28.85
Discount: $4.50 (15.60%)
View details

USB Eight Channel Relay Board for Automation

This is relay card with eight relays which is controlled via PC USB port. We have created flexible software for this USB relay board, that allows you to make simple automation project or control from command line. We provide various examples in .NET, Java, VB6, BCB6, Labview, Python and others. Android app is also available.

Price: $26.50
View details

USB 16 Channel Relay Board for Automation - Virtual COM (Serial) Port

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 board allowing to be designed simple automation project or control from command line. Numerous software examples can be provided (VB6, BCB6, Java, .NET, Labview, Python). Android software available.

Price: $67.00
View details

USB 16 Relay Board PCB - ModBus RTU, Timers

This is USB Relay Module with ModBus RTU protocol support and 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. The module supports up to 16 independent timers with min. resolution 100ms. There are lot of profesional ModBus software apps for this usb relay board allowing to be easily integrated in any ModBus automation project. Software examples are available as well. This is the PCB version.

Price: $67.00
View details

USB 16 Channel Relay Module for Automation, DIN Rail BOX - Virtual COM (Serial) Port

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). Android software available.

Price: $109.00
View details

USB 16 Relay Module - ModBus RTU, Timers, DIN RAIL BOX

This is USB Relay Module with ModBus RTU protocol support and 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. The module supports up to 16 independent timers with min. resolution 100ms. There are lot of profesional ModBus software apps for this usb relay board allowing to be easily integrated in any ModBus automation project. Software examples are available as well. This is the DIN RAIL BOX version.

Price: $109.00
View details
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