The measurement allowed error is +/- 1-3cm. LCD Display 256x64 - 2.08 Inch OLED SH1122 Module 3.12 Inch 256x64 Display 12inch Oled Display Module 256×64 Spi Support Graphic LCD Screen OLED Display 3.12 module is an OLED 256x64dot matrix display module with parallel &SPI Interface. Comparing to LCD, OLED screens are more competitive, which has a number of advantages such as high brightness, self-emission, high contrast ratio, slim thin outline, wide viewing angle, wide temperature range, and low power consumption Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. Discover the RET025664B, a 3.12-inch passive matrix 256x64 OLED display module with 4-bit grayscale support and SSD1322 COF driver IC. This OLED 256x64 module supports SPI, 6800, and 8080 interfaces, ideal for industrial and embedded applications arlote Controller IC: SSD1322Operation Voltage: 3., 3V-5., 0VInterface: SPI/6800/8080Operation Temperature: -40~80 CelsiusViewing Angle: +/-175 degreeLanguage: English, Japanese, Western Eurpean, RussianType: yellow fontColour: blueMaterial: plasticPackage Contents:1 * Display ScreenOnly the above package content, other products are not included.