SPECTRASENSORS

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