Measure 360 and Hold Data Protractor measuring range: 0-999.9; Resolution: 0.05(3'); Accuracy: 0.5; Goniometer, can measure 360 interior and exterior angles, supports degree and degree/minute unit conversion. It has hold button and zero button. To lock the data, please press the HOLD button. (Rotating the knob is only for loosening and tightening, can not completely fix the angle 4 in 1 Multifunctional Digital Protractor: This product is a combination of protractor, spirit level, circular spirit level and ruler. It is calibrated by 3 spirit levels. Help you better measure the angle. (NOTE: This is NOT a digital level, no number is displayed on the LCD screen, can only judge whether the object is tilted). The main ruler is a dual scale in metric and inches. Large LCD Screen and Auto Power Off: This angle protractor has a large full-screen LCD screen that allows you to read the data easily and quickly. The digital angle ruler will automatically turn off after 5 minutes of inactivity to save power. The digital protractor also has a zero button that can be reset to zero at any position and suitable for absolute and relative measurement. High Quality Material and Portable Design: The thickened and widened ruler body is made of high-strength nylon fiberglass construction material, which has good hardness, wear resistance, no deformation, no scratches, light and durable 230mm, small, delicate design, easy to use and carry. The hanging hole design is convenient for hanging. Wide Range of Applications: This angle measuring tool is widely used in woodworking furniture, building decorations, school, home improvement, mechanical processing and other fields (including angle adjustment of table saws, miter saws, band saws, etc.) Package Contents: 1 Digital Angle Finder, 1 CR2032 3V Battery, 1 Instruction Manual. CE and FC certification passed. 4-in-1 multi-function high precision 360 degree digital angle finder protractor angle finder level scales ruler Our eyes are not as accurate as the machine and there are always errors in the readings. With digitalization, you can make everything easier. This is a digital angle measuring tool, which can make you measure more accurately, work smarter and have higher productivity. The goniometer is very suitable for woodworking marking, framing, custom furniture construction, staircase and deck construction, etc. Friendly Tips: 1.The button is not used for locking. The knob can only be loosened or tightened according to the user's usage habits and needs. Tightening cannot completely fix the angle, just avoid moving the digital angle ruler when drawing a line, making the measurement more convenient and reliable. 2. Si vous souhaitez "rserver" la valeur d'angle dont vous avez besoin, vous devez utiliser la fonction de conservation des donnes. Vous devez appuyer sur le bouton rouge HOLD au lieu de tourner le bouton pour verrouiller. 3.Il peut tre utilis comme un niveau bulle, vous aidant vrifier et calibrer (REMARQUE: ce n'est PAS un niveau numrique, n'affichera pas le numro sur l'cran LCD, vous aidera uniquement juger s'il est horizontal / vertical / le plan horizontal est inclin ou pas) 4. L'cran LCD scintille ou l'affichage numrique est incomplet, cela signifie que la tension est trop basse, veuillez remplacer la cellule par une nouvelle temps. 5.La surface de l'cran LCD a un film protecteur pour viter de rayer l'cran pendant le transport. Si le film protecteur est ray, veuillez le retirer et ne vous inquitez pas du problme de qualit, merci! Caractristiques: Autoriser une mesure 360 degrs Angle interne et externe Avec bulle horizontale / bulle verticale / niveau bulle circulaire Rgle principale avec lignes d'chelle mtriques et en pouces Grand cran LCD facile lire Fonction de maintien des donnes pour conserver la valeur d'angle ncessaire Bouton zro pour la mesure absolue et relative Conversion d'unit degr / degr-minute pour rpondre diffrentes exigences Arrt automatique aprs 5 minutes pour prolonger la dure de vie de la batterie Le trou de suspension est pratique pour accrocher et ranger Combinaison multifonctionnelle - il peut s'agir d'un chercheur d'angle et d'un niveau, d'une rgle d'angle, d'une rgle droite Le forfait comprend: 1x goniomtre numrique