Magnetic Digital Inclinometer Aluminum Digital Angle Protractor with Audible Alarm, Auto Read, Digital Angle Gauge, Backlit Display, IP54 Waterproof

【Digital Protractor Inclinometer】Measuring range: 4x90° (0~360°) to display angle and slope readings in degrees, inclination in/ft, mm/m, and percentage of slope. The high-precision digital goniometer can measure or set angles: accuracy is ±0.1° at 0° and 90°; other angles are ±0.2°. Resolution: 0.05°.【Audible Alarm and Hold Function】This angle gauge tool has a built-in audible beep; it sounds at 0° or 90°, the beep frequency increases as it approaches 0° or 90°, and finally reaches a constant tone at exactly 0° or 90°; Unique data freeze function, giving you an easy way to save the measurement; The automatic inversion display in the bevel box makes it easy to take slope readings when the instrument is upside down. [V-Slot Base & Backlit Display] The V-slot base with powerful magnets can be securely attached to curved or cylindrical magnetic surfaces (such as pipes or metal shafts) without worrying about securing the tool in place. The backlit LCD screen helps you work in dark conditions, and the displayed measurement values become clearer. [Two Measurement Modes] The electronic level has an absolute angle mode and a relative measurement mode. Simply press the "ZERO" button to switch between relative and absolute measurements at any position and quickly measure the angle between the two surfaces being measured. The gauge tool can also be used as an inclinometer, protractor, and level and bevel gauges. 【Aluminum Frame & IP65 Waterproof】Sturdy and durable aluminum frame, compact and lightweight, plus a storage bag for easy transport and use; IP65 dust and water resistant, so it can be used in any woodworking shop, garage, or garden shed; Powered by 2 AAA batteries (not included), automatically shuts off after 3 minutes of inactivity, low battery warning provided.