Handheld Carbon Monoxide Meter with High Precision CO Gas Tester Monitor Detector Gauge 0-1000ppm GM8805<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>LCD backlight digital and character display for easier reading</li><li>Excellent audible alarm， low maintenance cost</li><li>Support carbon monoxide detection</li><li>Automatically shut off if it is not operated for 10 minutes</li><li>Buzzer alarm setup function</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41jgcyVYT4L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41sXXCaM%2BHL.jpg" noproxy>