Query: carbon monoxide detector hand held
Maxmartt Handheld Carbon Monoxide Meter High Precision CO Gas Tester Monitor Detector Gauge
Handheld CO Detector,Carbon Monoxide Meter, Portable CO Gas Leak Detector, Gas Analyzer, High Precision Detector, 0～1000ppm(Battery NOT Included)
GXG-1987 Handheld Carbon Monoxide Meter with High Precision CO Gas Tester Monitor Detector Gauge LCD Display Sound and Light Alarm 0-1000ppm
Hand Held Carbon Monoxide Meter - High Accuracy and 1000 PPM Measurement Range CO Sensor w/Digital LCD Display Auto Power Off Battery Operated and Control Buttons - Pyle PCMM05