LED Display Detectors Voice Strobe Safety CO Gas Carbon Alarm Detector promise rings for girlfriend Operation Mode:Opto-electronic

Operation Mode:Opto-electronic

weight: 7g

Color: 10 for choice

Band Length: 23 cm

Shape\pattern: Geometric

LED Display Detectors Voice Strobe Safety CO Gas Carbon Alarm Detector promise rings for girlfriend Operation Mode:Opto-electronic1, Adopts advance technology of ultra low power consumption micro control unit 2, High bright LED digital display the concentration of carbon monoxide 3, Ultra small size,delicate design 4, One button intelligent operation 5, Sensor applied advance electrochemistry technology 6, Two levels alarm,light and sound 7, Strobe light clear identification 8, Voice prompt,English and Chinese Optional. 9 Low power consumption design with unique power saving