Features:  Adopt 1.44 inch positive digital display screen for clear reading, one button lock data function and also with soft backlight, so it can be used normally even at night.  You can long press HOLD button to switch the units between angle and slope easily according to your needs.  When the inclinometer is used upside down, the screen font will automatically flip to display the data for easy viewing.  Strong magnetics bottom design allows the inclinometer strong attached to the measured object surface and will not fall.  Support relative and absolute measurement, angle and slope measurement, has a wide applications in daily decoration, wood processing, automotive industry, railroad overhaul and so on.    Specifications:  Material: alloy  Measurement accuracy: ±0.2°  Relative/absolute measurement: support  Angle/slope measurement: support  Data retention: support  Battery: 1 * lithium battery, 300mAh (incldued)  Package size: 70 * 70 * 35mm / 2.8 * 2.8 * 1.4in  Package weight: 140g / 4.9ounce    Packing list:  1 * Digital Inclinometer