The Omron FQ-D31 is a versatile touch finder designed for industrial automation applications. It features a 3.5-inch TFT color LCD with a resolution of 320×240 pixels, providing clear and detailed visual feedback. The device supports multiple display languages, including English, German, French, Italian, Spanish, Traditional Chinese, Simplified Chinese, and Korean, catering to a global user base. It offers various measurement displays such as last result display, last NG display, trend monitor, and histograms, along with image displays like through, frozen, zoom-in, and zoom-out images. The FQ-D31 is equipped with data logging capabilities, recording measurement results and images for analysis. It operates on a DC power supply with a voltage range of DC20.4V to 26.4V, and can also function with an AC adapter (AC100V to 240V, 50Hz/60Hz) or a battery pack (FQ-BAT1), offering flexibility in power options. The device is designed to withstand operating temperatures from 0°C to +50°C and storage temperatures from -25°C to +65°C, ensuring reliable performance in various industrial environments. Its compact dimensions and user-friendly interface make it an ideal choice for applications requiring precise touch input and visual monitoring.