extech instruments dissolved oxygen meter sd logger

automatic temperature compensation from 0 to 50 c via temperature probe sensor built into polarographic type oxygen probe monitor air quality in schools office buildings greenhouses hospitals and anywhere that high levels of carbon dioxide are generated co2 humidity temperature data logger checks for carbon dioxide concentrations and records data on an 2g sd card in excel format for easy transfer to a pc for analysis a triple lcd simultaneously displays all three parameters and a selectable data sampling rate of 5 10 30 60 120 300 and 600 seconds each stored reading includes a date and time stamp 0 to 4 000ppm co2 10 to 95 rh 58 to 2372 f 100 to 1300 c temperature complete with 6 aaa batteries 2g sd card universal ac adaptor and mounting bracket