No, an **ohmmeter** is **not an SI unit**.
An **ohmmeter** is a **device** (an instrument) used to **measure resistance**.
The **SI unit** (Standard International unit) for measuring **resistance** is the **ohm (Ω)** — not the ohmmeter.
In simple words:
- **Ohm (Ω)** = SI unit for resistance
- **Ohmmeter** = tool or machine that measures how much resistance something has
Would you also like me to explain a little about how an ohmmeter works?