Devantech DS2408 - 8 Relays & 40 Opto Inputs
Description
- Devantech DS2408 - 8 Relays & 40 Opto Inputs
- Offers robust control with 8 relays and 40 opto inputs
- Features easy setup via web browser with multiple control protocols
- Includes AES encryption for secure binary tcp/ip mode
- Supports remote control through free Android and iPhone apps
- Equipped with configurable sequencer and dScript customization
The Devantech DS2408 - 8 Relays & 40 Opto Inputs offers a versatile and robust solution for advanced control and automation needs. It features a straightforward configuration and setup process accessible via a web browser, allowing for control through a web page or tcp/ip with options for ASCII, Binary, or Modbus protocols. The device can send email notifications based on selected events and supports optional AES encryption for secure control in binary tcp/ip mode. It also includes relay automation for automatic control and enables Peer to Peer control with minimal effort.
The DS2408 is equipped with a 100-step configurable sequencer for sophisticated control tasks and supports optional dSX42 extension modules for control and sensing up to 300 meters away. It includes up to eight 32-bit counters with capture and reset capabilities, handling up to 10 counts per second on inputs. Event scheduling is available for daily or weekly timed events. Remote control is facilitated through free Android and iPhone applications. For those requiring further customization, the module can be tailored using the powerful dScript language, allowing for the creation of custom web pages, addition of logos, buttons, and functionalities, as well as the implementation of custom tcp servers and clients.

The hardware includes one TTL level serial port and one RS485 port, eight relays capable of handling up to 16Amp at 24VDC or 250VAC, and 40 optically isolated inputs available in either 24DC or 230AC configurations. Communication is supported via USB for development and RJ45 Ethernet for standard access. The device is powered by a 12V DC jack (adaptor sold separately) and features integrated snubbers to suppress switching spikes and relay arcs when inductive loads are used.
Note: Ensure proper handling and installation to avoid electrical hazards.

- 1x Devantech DS2408 - 8 Relays & 40 Opto Inputs
- Serial ports: One TTL level serial port and one RS485 port
- Relays: Eight capable of handling up to 16A at 24VDC or 250VAC with screw terminals for normally open, normally closed, and common contacts
- Inputs: Forty optically isolated 24VDC inputs, with a range of 5VDC to 30VDC (Green PCB)
- Inputs: Forty optically isolated 230VAC inputs (Red PCB)
- Communication: USB for development and RJ45 Ethernet for standard access
- Power: 12VDC jack 2.1mm (adapter not included)
- Integrated snubbers: Included on the board to suppress switching spikes and relay arc in inductive loads
Estimate shipping
Refund Policy
If you are not satisfied with a product purchased from the Site, you may request a return within 30 days from the delivery date, unless the product is listed under the Return Exceptions below or is subject to specific return conditions noted on the product page.
This return policy also applies, as a minimum standard, to products sold and fulfilled by third-party vendors through the Marketplace.
Please review the Return Conditions, Return Exceptions and the process on How to Request a Return Authorization (RA) before initiating a return request.
Returns under this policy concern non-defective products. In the case of a confirmed manufacturing defect, remedies are handled under the Warranty terms, at the Vendor's discretion. See the Warranty section.
Return Conditions
To qualify for a refund under the 30-day return policy, all of the following conditions must be met:
- A valid Return Authorization (RA) number must be obtained prior to returning the product. Returns without an RA number will be refused.
- The RA number is valid for 30 days. The returned item must be received within that period.
- The RA number must be included with the return.
- Products must be returned in unused, unmodified condition (e.g., no scratches, alterations, missing parts, or signs of installation/use) and in their original packaging, suitable for resale.
- Shipping fees are non-refundable. Return shipping costs are the responsibility of the customer, except in cases of a product confirmed defective through RobotShop's troubleshooting process or of a verified shipping error by RobotShop.
- Refunds are processed within 7 days after receipt and inspection of the returned item.
- A $100 cleaning fee may apply to domestic robots returned in used or unclean condition.
- A 20% restocking fee may apply to large-quantity returns of items ordered specifically for the customer from the manufacturer or not part of RobotShop's standard inventory.
Return Exceptions
The following products are not eligible for return or refund under this policy:
- Used, damaged, or modified products — Items that show signs of use, wear, or alteration, making them unsuitable for resale.
- Consumables — Use and wear-and-tear components, altered or depleted through use (e.g., batteries, belts, brushes, gears, filament, tires, disposable bags, lubricants, greases, waxes, etc.). Not eligible for return once opened or used.
- Perishables — Goods liable to deteriorate or expire rapidly. Not eligible for return.
- Sealed goods (health or hygiene) — Items sealed for health-protection or hygiene reasons (e.g., masks, gloves, odor-absorbing products). Not eligible for return once unsealed.
- Build-it-yourself products and items requiring customer assembly — Including robots & kits, robot parts, and other products requiring assembly or soldering. Not eligible for return once assembled, soldered, or installed.
- Digital Goods, Software, and Apps — Final sale only, due to licensing restrictions.
- Clearance Items — Products identified as clearance or final sale, including end-of-life or discontinued items.
- Custom-made, personalized, or special-order items — Products manufactured, configured, adapted, or built to the customer's own specifications and requirements.
- On-Demand Items — Standard catalogue products not stocked by RobotShop and ordered specifically to fulfill a customer request.
- Professional & Specialized Equipment — See the Professional & Specialized Equipment Warranty page and Professional & Institutional Buyers (B2B) section in the Terms & Conditions.
How to Request a Return Authorization (RA)
While the same return policy applies, these orders require a separate contact process for returns.
- RobotShop Fulfilled Orders → submit a support ticket from your account under My Support Tickets.
- Marketplace Vendor Orders → submit a ticket from your account under My Marketplace Tickets to contact the vendor directly.
Note: Marketplace vendor products are normally labelled with SKUs starting with RM, and identified on the product page with the mention "Sold and fulfilled by [Vendor Name]".