- Non-slip palm-fit handle: the grip is designed to fit comfortably in the palm, helping to prevent slipping and maintain control during use. - Alarm beep and flashing red light: provides a clear audible and visual alert to indicate measurement progress or completion. - Compact and portable design: small, easy to carry, and simple to operate, making it suitable for quick measurements in various settings. - Use scenario: on-site construction or carpentry - Carry this device in a toolbox to quickly verify dimensions before cutting or installing parts, reducing rework and errors. - Use scenario: home improvement projects - Use it to measure space and component sizes to ensure proper fit and alignment during renovations or DIY projects. - Use scenario: field maintenance or inspections - Take it to job sites or facilities for fast spot checks, with audible and visual alerts to confirm results without delay.