2-in-1: 360° highly sensitive chip, this combination smoke and carbon monoxide detector can detect the threat of these two gases. Not single-function carbon monoxide detectors or smoke detectorAudio-visual combination: LED always displays carbon monoxide concentration, close to the car whistle 85dB loud alarm, can sleep at ease, sound and light combination, reduce false positives10-Year Battery Life: The smoke and carbon monoxide detector uses lithium battery & low energy technology for power supply; The end-of-life signal light alerts you when you need to replace itABS flame-retardant shell: This smoke and carbon monoxide detector adopt ABS material shell & modern minimalist design, applicable to Warehouse, company, hotel, school, home, cinema, factory...365 day Limited warranty: CCCF fire certification, Uninterrupted 24/7 protection. Comes with instructions to ensure proper use. Note the color change of the indicator
