Laser-based sensors for detecting trace amounts of gases within a background of at least one other gas; industrial processing laser-based testing instruments for use in determining the composition of gases; Optical sensors for detecting trace amounts of gases; Electric or electronic sensors for detecting trace amounts of gases within a background of at least one other gas; Gas testing instruments; Technical measuring, testing and checking apparatus and instruments for measuring, testing and checking the temperature, pressure, quantity and concentration of gas and liquids; Gas sensors for measuring gas concentration

'amount':8,40,50 'apparatus':70 'background':13,55 'base':3,24 'check':69,77 'composit':32 'concentr':83,93 'detect':6,38,48 'determin':30 'electr':43 'electron':45 'gas':19,61,62,85,88,92 'gase':10,34,42,52 'industri':20 'instrument':26,64,72 'laser':2,23 'laser-bas':1,22 'least':16,58 'liquid':87 'measur':66,74,91 'one':17,59 'optic':35 'pressur':80 'process':21 'quantiti':81 'sensor':4,36,46,89 'technic':65 'temperatur':79 'test':25,63,67,75 'trace':7,39,49 'use':28 'within':11,53

SPECTRASENSORS

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