Portable Handheld High Precision Carbon Monoxide Meter CO Gas Leakage Detector Alarm Features:  The intelligent design, with multiple functions, is reliable and practical in detecting CO and gas. Can highlight the backlight display, sound and light alarms, which is safer and more convenient. Low consumption symbol display, and ergonomic design, making the detector attractive and beautiful. Pay much attention to gas safety and prevent gas leakage, providing you with safer environment. With simple configuration, comfortable to operate and easy to carry. Specification: Product Name: Carbon monoxide detector Model: RZ8805 Material: ABS plastic Color: As picture shown Detection Gas: gas, carbon monoxide Measuring Range: 0-1000ppm Resolution: 1ppm Minimum Reading: 1ppm Accuracy: ±5% (F.S), ±10ppm Response Time: 60 seconds Sensor Type: electrochemical CO sensor Buzzer Alarm Limit Setting: Support Check the Highest and Lowest Concentrations Of CO: Support Set the Highest and Lowest Concentrations Of CO: Support Maximum, Average and Data Retention: Support Automatic Power Off Function: Support Low Power Indicator: Support LCD Backlight Display: Support Working Environment: 0-50oC, 32-122oF, 10-90%RH Storage Environment: -10-80oC, -14-176oF Relative Humidity: 10-75% Power: 2 x 1.5V AAA battery (not included) Application: Widely used in mining, metallurgy, petrochemical, pharmaceutical, wastewater treatment, paper and infrastructure construction, etc. Package List: 1 x Gas Alarm Detector  1 x Manual