The Fyrite® InTech® is the perfect tool for entry-level and residential technicians who need to ensure safe operating conditions and determine combustion efficiency. The InTech® features 6 fuels in the North American configuration to suit a wide variety of applications. The InTech® includes sensors for O2 and CO, with an option for an external NOx filter. The CO sensor can be replaced in the field without down time using B-Smart® pre-calibrated sensors.