DirectSense Tox II lets user mix or match up to 5 gas sensors, plus temperature, from choice of ammonia, nitrogen dioxide, nitric oxide, sulfur dioxide, hydrogen cyanide, ozone, oxygen, chlorine, hydrogen chloride, hydrogen, carbon monoxide, and others. WolfSense software allows real-time display of measurements and instantaneous datalogging and long-term trending. In addition to user-attached text, graphic, and audio notes, logged files include measurement data and calibration information. Desktop PC software is included for analysis and report generation on collected data.