CO Meter
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* 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