> ## Documentation Index
> Fetch the complete documentation index at: https://instro.nominal.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Agilent34401A

> A driver for [`InstroDMM`](/dmm)

<Card title="Agilent/HP/Keysight 34401A" horizontal href="/dmm/Agilent34401A">
  <img src="https://mintcdn.com/nominal/vd1fIohbHX0IE-nH/snippets/drivers/dmm/agilent-hp-keysight-34401a/image.png?fit=max&auto=format&n=vd1fIohbHX0IE-nH&q=85&s=5e03aaba02c5da05f79af824c22cbe28" style={{ width: "100%", height: "100px", objectFit: "contain" }} noZoom alt="Agilent/HP/Keysight 34401A" width="567" height="268" data-path="snippets/drivers/dmm/agilent-hp-keysight-34401a/image.png" />
</Card>

The [`Agilent34401A`](https://nominal-io.github.io/instro/instruments/dmm/#agilent-34401a) provides a driver that can be used to instantiate an [InstroDMM](/dmm). It also covers the rebadged HP and Keysight 34401A.

## Creating an [`InstroDMM`](/dmm) with [`Agilent34401A`](https://nominal-io.github.io/instro/instruments/dmm/#agilent-34401a)

```python theme={null}
from instro.dmm.drivers import Agilent34401A
from instro.dmm import InstroDMM

dmm = InstroDMM(
    name="myDMM",
    driver=Agilent34401A("ASRL3::INSTR"),
)
```

Parameters and methods specific to [`Agilent34401A`](https://nominal-io.github.io/instro/instruments/dmm/#agilent-34401a) can be found in the [SDK](https://nominal-io.github.io/instro/).