* CO ( Carbon monooxide ) , Temperature.
* CO range : 0 to 1, 000 ppm.
* Temperature. : 0 to 50 oC, oC/ oF.
* CO response time : 30 second.
* Data hold Record ( Max., Min. ) .
* RS232/ USB computer interface.
* 1.5 V battery ( UM-4/ AAA ) x 6 PCs or DC 9V adapter in.