Buzzer: Turn sound reminders on or off to suit your environment and workflow, providing audible feedback when a measurement is recorded or a preset condition is reached. HOLD: Press the HOLD button to freeze the current measured value on the display. This allows you to capture and compare readings without keeping the device steady or repeating the measurement. ON / OFF BUTTON: Use the dedicated power button to quickly turn the device on or off, helping conserve battery and manage power during field work or in the workshop. UNIT: The UNIT button switches between degree and percent slope modes for slope conversion. This supports common measurement contexts and makes it easy to read and apply results in the required format. Key benefits Clear, quick access to essential controls for reliable measurements. Audible reminders plus a hold feature reduce errors and improve recording efficiency. Flexible unit options (degree and percent slope) accommodate multiple tasks without conversion tools. Simple operation helps users of varying experience complete tasks accurately and efficiently. Use scenarios Carpentry and interior finishing: Align shelves, frames, or stair components with precise angles using degree measurements or percent slope as needed. Roofing and exterior work: Assess roof pitch or surface slope to plan drainage, material layout, or installation angles. Site measurements and quick recordings: Take readings on location and freeze them for later documentation or reporting, without needing to remeasure.