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MEK-C200 Wireless composite smoke and carbon monoxide alarm - Power supply: DC 9V/6F22 - Transmission frequency: 433.92 MHz, transmission code: 1527 protocol - Launch distance (open area): ≥200M - Quiescent current: ≥20μA - Alarm current: ≥30mA - Alarm loudness: ≥85dB - CO alarm trigger conditions: - 30 ppm: alarm after 120 minutes - 50 ppm: alarm after 60-90 minutes - 100 ppm: alarm within 10-40 minutes - 300 ppm: alarm within 3 minutes - Product size: 100×32mm - Product certification: in line with FCC/CE/ROHS/EN14604 standards