Feature:1. [Durable Material] This product is made of high strength aluminum alloy material, which is durable and can be used for a long time with confidence.2. [LCD With Backlight] The digital display module uses a high definition LCD screen with backlight function, which can be used normally in low light and dark environments.3. [Automatic Shutdown] It has a reset function, which can perform horizontal absolute and relative measurement of the measured object, and has a three minute automatic shutdown function without response.4. [Magnetic And Accurate] The bottom is magnetic, which can be attached to the surfaces of magnetic objects for measurement, with high accuracy to meet your various needs.5. [Widely Application] The product has a wide range of applications, mainly used in equipment installation, industrial engineering, and construction engineering.Specification:Item Type: Level ProtractorMaterial: Aluminum alloyBattery: 2 x AAA 1.5V (Battery Not Included)Application: Levelness measurementRange: 4 x 90Resolution: 0.05Accuracy: 0.20Repeatability: 0.1Working Environment: 0-40, humidity 80%Storage Temperature: -20~60Display: HD LCD backlightAutomatic Shutdown: No response for three minutesFeature: Clear, absolute/relative measurement, bottom strong magnetic.Package List:1 x Level Protractor (Battery Not Included) 1 x ManualNote:This product is a accurate measuring instrument to prevent physical damage such as falling, hitting, etc. and cannot be used and stored in surrounding soils such as storms, water, high temperature, and strong magnetic fields