1. M9-08 portable water quality analyzer
2. OIL-9 oil content detector
3. SN-OIL8 infrared oil detector
4. OIL-8 infrared spectrophotometer
5. M9-06 infrared oil detector
6. JC-OIL-6 oil concentration analyzer in water
7. HJ-OIL-6A infrared oil detector
8. OIL-6 infrared oil detector
9. JH-850 BOD5 detector
10. JH-U100 ultraviolet spectrophotometer TAG：