NEO Monitors is one of the leading suppliers of gas analysers and dust monitors based on tuneable diode laser (TDL) technology. Our instruments are the preferred choice for a broad range of applications within process and emission control. Laser based Gas Monitors for Environmental Monitoring or Process Control. NEO Monitors supply state of the art LaserGas gas monitors based on single line spectroscopy and Tuneable Diode Lasers. LaserGas is the best choice in Continuous Emission Monitoring and process control. Manufacturers of LaserGas emission monitors for the measurement of HCl,HF,NH3, CH4,O2, etc.