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Battery fire alarm gas detrector CO (carbon monoxide) gas detector with sounder Carbon monoxide alarm performance: 1, Power: 3pcs AA batteries 2, Standby current: less than 50uA 3, the alarm concentration: When the concentration of 30ppm, alarm alarm within 120 minutes; When the concentration of 50ppm, the alarm in the alarm within 60 to 90 minutes; When the concentration of 100ppm, alarm within 10-40 minutes alarm When the concentration of 300ppm, alarm alarm within 3

Self-checking portable CO (carbon monoxide) gas detector with buzzer Carbon monoxide alarm performance: 1, Power: 3pcs AA batteries 2, Standby current: less than 50uA 3, the alarm concentration: When the concentration of 30ppm, alarm alarm within 120 minutes; When the concentration of 50ppm, the alarm in the alarm within 60 to 90 minutes; When the concentration of 100ppm, alarm within 10-40 minutes alarm When the concentration of 300ppm, alarm alarm within 3 minutes. 4, Alarm

GAS detection alarm portable CO (carbon monoxide) gas detector with buzzer Carbon monoxide alarm performance: 1, Power: 3pcs AA batteries 2, Standby current: less than 50uA 3, the alarm concentration: When the concentration of 30ppm, alarm alarm within 120 minutes; When the concentration of 50ppm, the alarm in the alarm within 60 to 90 minutes; When the concentration of 100ppm, alarm within 10-40 minutes alarm When the concentration of 300ppm, alarm alarm within 3 minutes. 4,

Fire detection alarm portable CO (carbon monoxide) gas detector with buzzer Carbon monoxide alarm performance: 1, Power: 3pcs AA batteries 2, Standby current: less than 50uA 3, the alarm concentration: When the concentration of 30ppm, alarm alarm within 120 minutes; When the concentration of 50ppm, the alarm in the alarm within 60 to 90 minutes; When the concentration of 100ppm, alarm within 10-40 minutes alarm When the concentration of 300ppm, alarm alarm within 3 minutes. 4

Fire alarm battery portable CO (carbon monoxide) gas detector with buzzer Carbon monoxide alarm performance: 1, Power: 3pcs AA batteries 2, Standby current: less than 50uA 3, the alarm concentration: When the concentration of 30ppm, alarm alarm within 120 minutes; When the concentration of 50ppm, the alarm in the alarm within 60 to 90 minutes; When the concentration of 100ppm, alarm within 10-40 minutes alarm When the concentration of 300ppm, alarm alarm within 3 minutes. 4,

Fire alarm standalone CO (carbon monoxide) gas detector with buzzer Carbon monoxide alarm performance: 1, Power: 3pcs AA batteries 2, Standby current: less than 50uA 3, the alarm concentration: When the concentration of 30ppm, alarm alarm within 120 minutes; When the concentration of 50ppm, the alarm in the alarm within 60 to 90 minutes; When the concentration of 100ppm, alarm within 10-40 minutes alarm When the concentration of 300ppm, alarm alarm within 3 minutes. 4, Alarm

Fire alarm wireless CO (carbon monoxide) gas detector with buzzer Carbon monoxide alarm performance: 1, Power: 3pcs AA batteries 2, Standby current: less than 50uA 3, the alarm concentration: When the concentration of 30ppm, alarm alarm within 120 minutes; When the concentration of 50ppm, the alarm in the alarm within 60 to 90 minutes; When the concentration of 100ppm, alarm within 10-40 minutes alarm When the concentration of 300ppm, alarm alarm within 3 minutes. 4, Alarm

Fire alarm portable CO (carbon monoxide) gas detector with buzzer Carbon monoxide alarm performance: 1, Power: 3pcs AA batteries 2, Standby current: less than 50uA 3, the alarm concentration: When the concentration of 30ppm, alarm alarm within 120 minutes; When the concentration of 50ppm, the alarm in the alarm within 60 to 90 minutes; When the concentration of 100ppm, alarm within 10-40 minutes alarm When the concentration of 300ppm, alarm alarm within 3 minutes. 4, Alarm

Fire alarm portable CO (carbon monoxide) gas detector with sounder Carbon monoxide alarm performance: 1, Power: 3pcs AA batteries 2, Standby current: less than 50uA 3, the alarm concentration: When the concentration of 30ppm, alarm alarm within 120 minutes; When the concentration of 50ppm, the alarm in the alarm within 60 to 90 minutes; When the concentration of 100ppm, alarm within 10-40 minutes alarm When the concentration of 300ppm, alarm alarm within 3 minutes. 4, Alarm