Handheld XRF Spectrometer LXRF-B11 (XRF stands for X-ray fluorescence) comes in special three level military-protection-box, which is compression free, moisture-proof and shockproof for convenient handling and for on field analysis. Rechargeable lithium battery 27000 mAh, sustainable work up to 12 hours. The core parts are Miniature X-ray tube, Fast-SDD detector, digital signal processor and micro multichannel intelligent analysis module. Designed with 5 inch transflective LCD touch screen and multi-points operation. No need for sample preparation, direct measurement and analysis of the surface of goods that need to tested.