Sealevel Products | Impulse Embedded

Sealevel Serial, I/O, and Embedded Computing Solutions

We supply Sealevel Systems' high-reliability serial, digital I/O, and embedded computing products built for long-term operation in harsh and highly regulated environments.

Their range includes PCIe and PCI serial cards, Ethernet-to-serial devices, industrial I/O modules, and fanless embedded computers. Built for use in military, medical, and industrial environments, Sealevel products are known for rock-solid performance, extended lifecycle support, and compliance with strict operational standards.

Explore our Sealevel product range or get in touch for specialist advice.

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1 option available

Sealevel 687U Series

8 Port RS-232/485 (RJ45) Versacom Serial to USB Adapter

From £530.00 (exc. VAT)

1 option available

Sealevel 681U Series

8 Port RS-232 (RJ45) Serial to USB Adapter

From £513.00 (exc. VAT)

1 option available

Sealevel 647U Series

4 Port RS-232/485 (RJ45) Versacom Serial to USB Adapter

From £378.00 (exc. VAT)

1 option available

Sealevel 641U Series

4 Port RS-232 (RJ45) Serial to USB Adapter

1 option available

Sealevel ISO-1R Series

1 Port SeaISO Ruggedised Inline USB Isolator Cable

1 option available

Sealevel ISO-1 Series

1 Port SeaISO Inline USB Isolator

1 option available

Sealevel ISO-1-OEM Series

1 Port SeaISO Embedded Inline USB Isolator

1 option available

Sealevel HUB7P-UK Series

7 Port Industrial USB 2.0 Hub

1 option available

Sealevel HUB7M-UK Series

7 Port Industrial USB 2.0 Hub

1 option available

Sealevel HUB7i-UK Series

7 Port Isolated Industrial USB 2.0 Hub

1 option available

Sealevel HUB4PH-UK Series

4 Port Industrial USB 2.0 Hub

1 option available

Sealevel 2833 Series

8 Port RS-232/422/485 (DB9) Serial to USB Adapter

1 option available

Sealevel 2823 Series

8 Port RS-232/422/485 (DB9) Serial to USB Adapter

From £521.00 (exc. VAT)

4 options available

Sealevel 2807 Series

8 Port RS-232/485 RJ45 Versacom Serial to USB Adapter

From £435.50 (exc. VAT)

4 options available

Sealevel 2804 Series

8 Port RS-232 RJ45 Serial to USB Adapter

From £466.00 (exc. VAT)

1 option available

Sealevel 2803 Series

8 Port RS-232/422/485 (DB9) Serial to USB Adapter

From £524.00 (exc. VAT)

2 options available

Sealevel 2802 Series

8 Port RS-422/485 DB9 Serial to USB Adapter

From £503.50 (exc. VAT)

1 option available

Sealevel 2801 Series

8 Port RS-232 (DB9) Serial to USB Adapter

From £357.50 (exc. VAT)

1 option available

Sealevel 270U Series

7 Port Isolated Industrial USB 2.0 Hub

1 option available

Sealevel 2433 Series

4 Port RS-232/422/485 (DB9) Serial to USB Adapter

1 option available

Sealevel 2423 Series

4 Port RS-232/422/485 (DB9) Serial to USB Adapter

4 options available

Sealevel 2407 Series

4 Port RS-232/485 RJ45 Versacom Serial to USB Adapter

From £335.50 (exc. VAT)

4 options available

Sealevel 2404 Series

4 Port RS-232 RJ45 Serial to USB Adapter

From £321.00 (exc. VAT)

1 option available

Sealevel 2403 Series

4 Port RS-232/422/485 (DB9) Serial to USB Adapter

From £387.00 (exc. VAT)

1 option available

Sealevel 2402 Series

4 Port RS-422/485 (DB9) Serial to USB Adapter

From £196.50 (exc. VAT)

1 option available

Sealevel 2401 Series

4 Port RS-232 (DB9) Serial to USB Adapter

From £184.00 (exc. VAT)

1 option available

Sealevel 2228 Series

2 Port RS-232/422/485 (DB9) Software Configurable Serial to USB Adapter Board – PC Bracket

From £173.00 (exc. VAT)

1 option available

Sealevel 2223-OEM Series

2 Port RS-232/422/485 (DB9) OEM Serial to USB Board

From £185.00 (exc. VAT)

2 options available

Sealevel 2223 Series

2 Port RS-232/422/485 DB9 Serial to USB Adapter

From £184.00 (exc. VAT)

1 option available

Sealevel 2213 Series

2 Port Isolated RS-232/422/485 (DB9) Serial to USB Adapter

From £297.00 (exc. VAT)

1 option available

Sealevel 2208 Series

2 Port RS-232 (DB9) Serial to USB Adapter Board – PC Bracket

From £140.50 (exc. VAT)

1 option available

Sealevel 2203 Series

2 Port RS-232/422/485 (DB9) Serial to USB Adapter

From £230.00 (exc. VAT)

2 options available

Sealevel 2202 Series

2 Port RS-422/485 DB9 Serial to USB Adapter

From £230.00 (exc. VAT)

1 option available

Sealevel 2201 Series

2 Port RS-232 (DB9) Serial to USB Adapter

From £149.50 (exc. VAT)

1 option available

Sealevel 2161 Series

16 Port RS-232 (RJ45) Serial to USB Adapter

1 option available

Sealevel 2128 Series

1 Port RS-232/422/485 (DB9) Software Configurable Serial to USB Adapter Board – PC Bracket

From £168.00 (exc. VAT)

1 option available

Sealevel 2123 Series

1 Port RS-232/422/485 (DB9) Serial to USB Adapter

From £169.00 (exc. VAT)

1 option available

Sealevel 2113 Series

1 Port Isolated RS-232/422/485 (DB9) Serial to USB Adapter

From £179.00 (exc. VAT)

1 option available

Sealevel 2108 Series

1 Port RS-232 (DB9) Serial to USB Adapter Board – PC Bracket

From £76.50 (exc. VAT)

1 option available

Sealevel 2107 Series

1 Port RS-485 (DB9) Serial to USB Adapter

From £93.00 (exc. VAT)

1 option available

Sealevel 2106 Series

1 Port RS-422 (DB9) Serial to USB Adapter

From £72.50 (exc. VAT)

1 option available

Sealevel 2105R Series

1 Port RS-232 (DB9) Serial to USB Adapter

From £90.00 (exc. VAT)

1 option available

Sealevel 2104 Series

1 Port Isolated RS-232/422/485 (DB25) Serial to USB Adapter

From £125.50 (exc. VAT)

1 option available

Sealevel 2103 Series

1 Port Isolated RS-232 (DB25) Serial to USB Adapter

From £114.00 (exc. VAT)

1 option available

Sealevel 2102 Series

1 Port RS-422/485/530 (DB25) Serial to USB Adapter

From £159.00 (exc. VAT)

1 option available

Sealevel 2101 Series

1 Port RS-232 (DB25) Serial to USB Adapter

What Is Sealevel’s Specialty?
Sealevel focus on serial and I/O expansion solutions, including USB-to-serial adaptors, digital I/O modules and embedded control systems. Their designs are trusted where reliable connectivity is required across industrial and military sectors.

Why Choose Sealevel Hardware?
With extensive experience in serial communications, Sealevel products provide the robust connectivity needed to extend the life of legacy equipment. Many models also meet MIL-STD specifications for defence projects.

Why Source in the UK Through Impulse?
We deliver Sealevel hardware to our UK customers with technical guidance and lifecycle support, ensuring integration is seamless and supply is dependable across long-term projects.