| Working Conditions: Environmental requirements: small size, the whole machine can be placed on an ordinary laboratory table, no need to be equipped with an additional shock absorbing table. 1.Power supply 220V, 50Hz, 1KW 2.Temperature: Operating ambient temperature: 15°C-30°C 3.Humidity: <80%RH Main Specification: 1. Acceleration voltage: 3-20kV, continuously adjustable. 2. Electron gun type: pre-aligned tungsten filament (user can change by himself), highly integrated two-stage gun lens, no need to manually adjust the diaphragm of the objective lens. 3. Magnification ≥360000X； 4. Resolution:≤4nm 5. Detector types: secondary electron detector (SE), quadruple backscatter detector (BSE), integrated energy dispersive instrument 6. 3 Axis Motorized stage moving X≥60mm Y≥55mm； 7. Maximum sample size: XY two axes can be moved freely, and the sample size is 100*78*68.5mm. 8. High vacuum mode: fully automatic control, sample change and vacuum pumping time≤ 30s. 9. Vacuum system: built-in turbomolecular pump, external backing pump, the vacuum degree of the sample chamber is better than: 4x10-2Pa. 10. Video mode: ≥512x512 pixels, no need for small window scanning. 11. Quick scan mode: imaging time≤3s, ≥512x512 pixels. 12. Slow scan mode: imaging time≤40s, ≥ 2048x2048 pixels. 13. Image File: BMP, TIFF, JPEG, PNG. 14. Auto function: one-key automatic adjustment of brightness and contrast, auto-focus. 15. Navigation function: optical camera navigation and cabin camera. 16. Image measurement function: distance, angle, etc. 17. Control mode: mouse control. 18. Extended function: --EDS --5 Axis Motorized Stage --Low vacuum (1-60Pa) --Variety in-situ functional sample stages of the original factory, --Deceleration Mode, can observe non-conductor or poor conductivity samples without gold spraying 19.Main body size: 650*370*642mm | 
