Min. Order Reference FOB Price
100 Pieces US$2.00-5.00 / Piece
Product Description
Technical Data: 1. Sensor: Photoelectricity and electrochemical 2. Alarming level: Carbon Monoxide At 30ppm within 120min At 50ppm between 60-90min At 100ppm between 10-40min At 300ppm within 3min Smoke: 1% - 5%/ FT OBS 3. Power: DC 9V Battery 4. Sound level: ≥85dB(3m) 5. Working temperature: -10°C ...