OFF BUTTON Power off the device with a dedicated button for convenient shutdown. BUZZER Turn sound reminders on or off to suit your environment and preference. UNIT Use the UNIT button to switch the display between degree slope and percent slope, matching regional or project requirements. HOLD Use the HOLD button to freeze the currently displayed measured value for easier reading or recording. Benefits at a glance Quick, intuitive control with four dedicated buttons for essential functions. Flexible display options with degree or percent slope to fit different standards. Readings can be preserved momentarily with the hold function for accurate notetaking. Adjustable audible alerts to suit noisy or quiet environments. Use scenarios Construction site: Switch between degree and percent slope display as required by the project, then hold a measurement while you transcribe values to a report. Indoor workshop: Disable the buzzer to maintain a quiet working environment while taking measurements. Field data collection: Take successive slope measurements and use the hold function to compare values side by side without losing the previous reading.