Gas Meter à¤Ã×èͧÇÑ´á¡çÊ à¤Ã×èͧÇÑ´¡êÒ«¤ÒÃìºÍ¹âÁ¹Í¡ä«´ì Carbon Monoxide Meter-Gas Detector CO10 Extech USA Easy to read 1999 count backlit displays CO levels from 0 to 1000ppm Gas Meter à¤Ã×èͧÇÑ´á¡çÊ CO10 à¤Ã×èͧÇÑ´¡êÒ«¤ÒÃìºÍ¹âÁ¹Í¡ä«´ì Carbon Monoxide Meter-Gas Detector CO10 Extech USA Carbon Monoxide (CO) Meter Faster response measurements to 1000ppm Easy to read 1999 count backlit displays CO levels from 0 to 1000ppm 1ppm resolution with ±5% or ±10ppm basic accuracy (whichever is greater) Utilizes a stabilized electrochemical gas specific (CO) fast response sensor Audible alarm starts at 35ppm Backlight for low light conditions Digital Carbon Monoxide Detector measures up to 1000ppm. Features: Ergonomic pocket size housing Easy one button operation Easy to read 1999 count backlit displays CO levels from 0 to 1000ppm 1ppm resolution with ±5% or ±10ppm basic accuracy (whichever is greater) Utilizes a stabilized electrochemical gas specific (CO) fast response sensor Audible alarm starts at 35ppm Backlight for low light conditions Max Hold and Data Hold buttons Auto Power Off Complete with 9V battery and carrying case Applications: Ambient air checks on residential appliances CO emission of hot air furnaces and boilers Combustion checks on fireplaces, and grills HVAC service on furnaces and hot water heater Home Inspections Industrial environments where the accumulation of CO is possible Spec Summary: Range: 0 to 1,000 ppm Accuracy: ±10 ppm Power source: 1 9V battery Dimensions: 6.3" x 2.2" x 1.6" CO10 Extech Gas Leak Detector Gas Meter à¤Ã×èͧµÃǨ¨Ñºá¡êÊÃÑèÇ à¤Ã×èͧÇÑ´á¡êÊ