Function: 1 When the inclinometer is upside down, the LCD display numbers will automatically face up and make it easy to read. 2. Round V-shaped strong magnets can be adsorbed on iron, steel and other metal surfaces (non-ferrous products cannot be adsorbed ). 3 The inclinator is powered by 2 AA batteries and can be replaced when the battery runs out. 4 This incline meter is very lightweight and very easy to carry when you need to work outdoors. 5 The entire inclinator is made of high quality which is lightweight and durable. How to Use: Specifications: a> Item Type: Inclinator Accuracy: 0°, 90°≤0.01°, Other ≤0.2° Range: 0-90° Resolution: 0.05° Protection Level: IP65 Operating Humidity: ≤85% Operating Temperature: 0 - 40 °C Length: Approx. 128 mm / 5 in Width: Approx. 17 mm / 0.7 mm / 2 mm / 2 in Height: Approx. 60 mm / 2 mm .4" Package List. : 1 x Inclinator 1 x Storage Bag 1 x User Manual Note: 1 The inclinator is equipped with high precision sensors and signal processing circuit, which is hard forbidden falling or collision. 2. If the inclinator is not used for a long time, please remove the power battery to prevent corrosion. 3 Users of inclinators are strictly prohibited to open or adjust calibration data by themselves. 4 If you do not see the numbers on the LCD display after turning on the slotmeter, you need to replace the battery in time.