Sealevel Systems Pricing
Starting price
$11/month
Pricing model
Paid
Free tier
No
Free trial
No
Plans
| Plan | Price | Billing | Notes |
|---|---|---|---|
| Relio R1 Edge - Intel® i7 | — | month | — |
| SeaDAC Lite - USB to 4 Form C Relay Outputs | $155 | month | — |
| SeaDAC USB to 16 Isolated Inputs; 8 Form C Relays | $335 | month | — |
| Intel® Atom™ Flexio Fanless Industrial Embedded Computer | $824 | month | — |
| Intel® Core™ i5 Flexio Fanless Industrial Embedded Computer | $2105 | month | — |
| SeaLINK+422: USB to 1 Port RS-422 (Tx & Rx only) Adapter | $79 | month | — |
| SeaLINK+232-DB9: Rugged USB to 1 Port DB9 RS-232 Adapter | $79 | month | — |
| SeaLINK+2I.DIN:USB to 2 Port Iso RS232/422/485 Serial Adaptr | $248 | month | — |
| USB Type A to SeaLATCH USB Type B Cable;72";Rev D | $11 | month | — |
| Flush Mount Bracket Kit - for SeaI/O; Relio R1000 Systems | $33 | month | — |
| Cable 50PIN to 50PIN IDC Flat Ribbon 40in. | $12 | month | — |
| SeaI/O Ethernet Modbus TCP With 16 Iso Inputs; 16 Reed Relays | $313 | month | — |
| SeaLATCH USB Panel Mount Adapter | $11 | month | — |
| 8006Hec - PCI Express 16 Isolated Inputs (10-30V) | $492 | month | — |
| PCI Express 16 Reed Relay Output / 16 Isolated Input Digital Interface With Socketed Resistors | $522 | month | — |
| SeaISO Embedded Single Port Inline USB 3 Isolator | — | month | — |
| SeaISO Embedded Single Port Inline USB 2 Isolator | — | month | — |
| 8006ec - PCI Express 16 Isolated Inputs (3-30V) | $454 | month | — |
Figures are the vendor's published prices. Unknown values show as “—”. Price-history tracking is not yet available for this tool. Price verified 2026-10-06. Last updated 2026-10-09.
True cost
True cost calculator
| Plan | Listed | Seat basis | Monthly · 5 seats | Annual · 5 seats |
|---|---|---|---|---|
| SeaDAC Lite - USB to 4 Form C Relay Outputs | $155/month | flat | $155 | $1,860 |
| SeaDAC USB to 16 Isolated Inputs; 8 Form C Relays | $335/month | flat | $335 | $4,020 |
| Intel® Atom™ Flexio Fanless Industrial Embedded Computer | $824/month | flat | $824 | $9,888 |
| Intel® Core™ i5 Flexio Fanless Industrial Embedded Computer | $2,105/month | flat | $2,105 | $25,260 |
| SeaLINK+422: USB to 1 Port RS-422 (Tx & Rx only) Adapter | $79/month | flat | $79 | $948 |
| SeaLINK+232-DB9: Rugged USB to 1 Port DB9 RS-232 Adapter | $79/month | flat | $79 | $948 |
| SeaLINK+2I.DIN:USB to 2 Port Iso RS232/422/485 Serial Adaptr | $248/month | flat | $248 | $2,976 |
| USB Type A to SeaLATCH USB Type B Cable;72";Rev D | $11/month | flat | $11 | $132 |
| Flush Mount Bracket Kit - for SeaI/O; Relio R1000 Systems | $33/month | flat | $33 | $396 |
| Cable 50PIN to 50PIN IDC Flat Ribbon 40in. | $12/month | flat | $12 | $144 |
| SeaI/O Ethernet Modbus TCP With 16 Iso Inputs; 16 Reed Relays | $313/month | flat | $313 | $3,756 |
| SeaLATCH USB Panel Mount Adapter | $11/month | flat | $11 | $132 |
| 8006Hec - PCI Express 16 Isolated Inputs (10-30V) | $492/month | flat | $492 | $5,904 |
| PCI Express 16 Reed Relay Output / 16 Isolated Input Digital Interface With Socketed Resistors | $522/month | flat | $522 | $6,264 |
| 8006ec - PCI Express 16 Isolated Inputs (3-30V) | $454/month | flat | $454 | $5,448 |
Estimate from published prices. Per-seat plans scale with seats; flat plans don't; plans with included seats charge the base until you exceed them, then add the per-seat overage where published. Monthly/annual come from each plan's billing period. Taxes and add-ons excluded.
Sealevel Systems's starting price ($11) is 94% below the Developer Tools average of $187.
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