GXG-1987 Handheld Carbon Monoxide Meter with High Precision CO Gas Tester Monitor Detector Gauge LCD Display Sound and Light Alarm 0-1000ppm;

Specifications
Color: Orange + Black
Material: ABS Plastic
Sensor Type: Stablized Electrochemical Gas Specific (CO)
Detection Gas: Carbon Monoxide (CO)
Temperature Measurement: Ambient Temperature
Display Unit: CO: ppm, Temperature: ℃/℉
Measurement Range: CO: 0～1000PPM, Temperature: 0～50℃ / 32～122℉
Resolution: CO: 1PPM, Temperature: 0.1℃ / 0.1℉
Accuracy: CO:±5% or ±10PPM, Temperature: ±1.5℃
Response Time: <60s
Alarm: Sound & Light Alarm
Alarm Point: 24PPM Preset (Adjustable)
Battery Type: 3 * AAA 1.5V Alkaline Batteries (NOT Included)
Operating Temperature: 0～50℃, Relative Humidity 1%～99%
Storage Temperature: -30～60℃, Relative Humidity: 1%～99%
Item Size: Approx. 135 * 50 * 35mm / 5.31 * 1.97 * 1.38in (L * W * H)
Item Weight: Approx. 89g / 3.13oz
Package Size: Approx. 21.5 * 15 * 5cm / 8.46 * 5.91 * 1.97in (L * W * H)
Package Weight: Approx. 127g / 4.48oz

Package List
1 * Carbon Monoxide Meter 1 * User Manual