UNI-T LM320B Portable Inclinometer Resources: Compact and lightweight design, portable to use and carry. Easy to operate, just place it on the slope, handle absolute and relative measurements. The contents of the large screen can be automatically flipped over for easy reading. Double-sided magnetic (LM320A) / four-sided magnetic (LM320B), so it can be drawn on a metal surface for precise results. Powered by a 3,7V 300mAh lithium battery and with a low battery indicator, it supports charging via a USB cable equipped with a Type-C interface. If no operation is performed within 5 minutes, it will turn off automatically to save energy. Widely used in automobile, railway, military, industry, machinery, woodworking, construction, telecommunications, etc. Technical data: Model: LM320A / LM320B Magnetic base: Magnetic on both sides (LM320A) / Magnetic on four sides (LM320B) (optional) Material: Aluminum Alloy Black color Power supply: 1*3.7 V 300 mAh lithium battery Charging Interface: USB Type-C Working time: about 2 hours Measuring range: 4*90 Accuracy: (0,2) Resolution: 0,01 Measurement of relative / absolute angle: Angle lock function: Low battery reminder: User Interface: Reverse screen with backlight Automatic shutdown: no operation for 5 minutes Two-way laser scanning: only support LM320B LM320B wavelength: 630nm 670nm Laser radiation LM320B: CW < 1mW Operating temperature: 050 Product Size: ok. 6,2 * 6,2 * 3,2 cm / 2,44 * 2,44 * 1,26 inches. Item weight: ok. LM320A: 97 g / 3,42 oz LM320B: 123 g / 4,34 oz 11 * 7,5 * 4,5 cm / 4,33 * 2,95 * 1,77 inches. Package weight: ok. LM320A: 182 g / 6,42 oz LM320B: 209 g / 7,37 oz List of things to pack: 1 * Inclinometer LM320B 1 * reflective plate 1 * Silicone Pad 1*USB cable 1 * User Manual (English)