RN01 Smart Digital Protractor Mini Angle Gauge 360 Degree Inclinometer Angle/level/slope Four-sided Strong Magnetic Tester Note: The parcel be sent without battery ,suitable for battery type is 2PCS x AAA 1.5V battery Digital Angle Gauge Magnetic Protractor Inclinometer Level Angle Finder Angle Cube Level Box With And Backlight Small and Light Makes it Convenient to Carry Values can be Clearly and Easily Read on the LCD Display Built-in Magnets on the Base Which Secures the Attachment to Any Iron Provides Relative and Absolute Measurements and Zero Setting to Any Position Data hold Powered by 2 x AAA 1.5V Battery. (without sent batteries) Auto Power Off After 12 Minutes of No Operation Item No : RN01 Measurement range : 4 x 90° Accuracy : ±0.3 ° Resolution : 0.05° Battery type : 2 x 1.5V "AAA" batteries (not included) Dimensions : 6.55 x 6.55 x 3.2cm/2.57 x 2.57 x 1.25 in Weight : 84g Color: Black Material: plastic Package Contents: 1 * Digital Inclinometer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.