Analytical Instruments, Testing Instruments, Microscope manufacturer / supplier in China, offering an International Intelligent and Safe BOD Analyzer That Calculates The BOD (Biochemical Oxygen Demand) Value of Samples., Professional Handheld Radiation Survey Meter - Alpha/Beta/Gamma/Neutron Detection with Data Logging & LCD Display, Handheld Nuclear Radiation Detector High Sensitivity Gamma/Beta/X-ray Meter with Real-Time Monitoring & Alarm and so on.