265153 - Instruments and apparatus not elsewhere classified for physical or chemical analysis - 278 Manufacturers List

2651531300 - Electronic gas or smoke analyzers - 18 Manufacturer
2651533000 - Spectrometers spectrophotometers etc. using optical radiation - 2 Manufacturer
2651535000 - Instruments and apparatus using optical radiation not elsewhere classified - 15 Manufacturer
2651538100 - Electronic ph and rh meters other devices for measuring conductivity and electrochemical q - 1 Manufacturer
2651538300 - Other electronic equipment and devices - 128 Manufacturer
2651539000 - Other instruments and apparatus not elsewhere classified for physical or chemical analysis - 71 Manufacturer