1. Imported light source.
2. Cold light source, narrowband interference optical system
3. Large LCD display.
4. Able to store standard 20 curve and 199 measurements value
5. Could charge lithium-ion battery.
6. ABS material main body, IP65 design. Anticorrosive and waterproof.
7. 16-bit single chip microcomputer system.
8. Data protection function of power failure.
9. USB port included.