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      Sealevel Systems, Inc. was founded in 1986. The same innovation and responsive thinking that gave us our start drives us still today.

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Accessories

Sealevel’s wide range of accessories provides one-stop shopping for all of your serial and digital I/O application requirements. From cables and mounting brackets to USB hubs and industrial Ethernet switches, Sealevel has the accessories you need.

Home / Products / Accessories

Adapters & Converters

Save time connecting devices with different connectors or interfaces. Choose CompactFlash adapters, RJ45 modular adapters, pin-out adapters, gender converters, null modem adapters, and surge suppression adapters with DB9 and DB25 connectors.

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Books & Reference

Expand your knowledge with The Digital I/O Handbook — A Practical Guide to Industrial Input and Output Applications. Renowned technical author Jon Titus and the Founder and CEO of Sealevel Systems, Tom O'Hanlan, clearly explain real-world digital input/output implementation from both a hardware and software perspective.

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Cables

Connect Sealevel devices to computers and other peripherals. High quality cables are offered in a variety of lengths, connectors and form factors. Choose USB and serial extension cables, converter cables, digital I/O ribbon cables, Ethernet cables, power cables, and Sealevel product replacement cables.

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Computer Storage

Upgrade Sealevel industrial computers with solid-state hard drives and flash memory storage options.

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Ethernet Networking

Expand your Ethernet network with industrial and commercial-grade unmanaged Ethernet switches. Choose from low-cost, 5-port desktop switches or rugged Power over Ethernet (PoE) DIN rail compatible switches.

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Mounting Hardware

Install Sealevel products in racks, on DIN rail, on walls, or under tables with a variety of mounting brackets and hardware options. Choose industry-standard rack trays and faceplates in 1U, 2U, 3U, and 4U heights.

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Power Supplies

Power Sealevel devices with AC to DC power supplies available in a variety of voltages. Choose models that plug into standard wall outlets or mount on industry-standard DIN-rail.

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Relay Racks & Relays

Expand Sealevel TTL products with industry-standard relay racks and solid-state relay modules. Add 8, 16, and 24 position quad and discrete relay racks to TTL devices with standard 50-pin ribbon cables.

View All Relay Racks & Relays

SeaRAQ I/O

SeaRAQ™ I/O expansion modules provide unprecedented expansion capabilities for Sealevel Relio R3 and Relio R4 industrial computers. SeaRAQ modules support a variety of real-world analog I/O configurations such as A/D inputs, 4-20mA outputs, 0-20mA inputs, thermocouples and RTD inputs. Optically isolated inputs, relay outputs and additional serial interfaces are also available.

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Software

Sealevel offers a variety of software solutions to meet your application requirements. Download a trial version of DAQFactory, or purchase an operating system license to go with your Relio industrial computer. Call us to discuss other software options.

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Terminal Blocks

Break out any molded cable to screw terminals, which simplifies field wiring. Use terminal blocks for pinout conversion, testing, etc. Select terminal blocks with standard DB9, DB25, RJ45, and 50-pin IDC connectors, or specialty terminal blocks with DB37 and DB44 connectors. Kits and mounting hardware are also available.

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    • ACC-188
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