| Model | Input Channels | Expandable* | Measurements | Data Storage | Interface | Counter Channel |
Rate Channel |
Price |
| DI-160 | 8 (four high and four low) | - | Event, State, Count | PC or SD memory | USB | Yes | Yes | $299 |
| DI-161 | 8 isolated | - | Event, State, Count | PC or Cloud | Ethernet | Yes | Yes | $629 |
| EL-USB-5 | 1 | - | Event, State, Count | Internal | USB | Yes | Yes | $91.99 |
| DI-1100 | 4 | - | ±10 Volts | PC | USB | - | - | $59 |
| DI-1110 | 4 or 8 | - | ±10 Volts | PC | USB | 1 | 1 | $89 |
*Expand with ChannelStretch™. Compatibility with other units dependent on model.