# Operation

- Protect the measuring tool from moisture and direct sunlight.

- Do not expose the measuring tool to any extreme temperatures or variations in temperature. In case of large variations in temperature, leave the measuring tool to adjust to the ambient temperature before switching it on. The accuracy of the measuring tool and the functionality of the display may be compromised if exposed to extreme temperatures or variations in temperature.

- Avoid hard knocks to the measuring tool or dropping it. After severe external influences and in the event of abnormalities in the functionality, you should have the measuring tool checked by an authorised Bosch after-sales service agent.

- Hold the measuring tool by the intended gripping surface (8) only, so as not to influence the measurement.

- Do not attach any stickers or labels to the sensor area (17) on the rear of the measuring tool. Metal labels in particular will affect measuring results.

Do not wear gloves when taking measurements and make sure that you are properly earthed. If you are not properly earthed, the identification of live wires may be impaired.

When taking measurements, avoid getting close to devices that emit strong electric, magnetic or electromagnetic fields, such as mobile telephones, laptops or tablets. If possible, deactivate all tools whose radiation could interfere with the measurement and switch off the corresponding functions or tools.

Starting Operation
How it Works
Errors – Causes and Corrective Measures
Recalibrating the Measuring Tool