* Ranges: O2 0-25% vol, CO2 0-50% vol, CO with H2 compensation 0-10,000 ppm with measuring-range extension and selectable dilution factor, NO 0-3,000 ppm, NO2 0-500 ppm, SO2 0-5,000 ppm, draught 50 hPa, temperature -40 to +1,000 deg C
* Includes switch-off and rinse function for CO cell and fresh air rinse for longer term measurements
* Internal memory for 250,000 readings, with RS232C interface and software provided
* Operation from mains or rechargeable battery.