Description Description: VARIOUS OCCASIONSIt is used for leakage detection of gas and CO. It can be installed in kitchens, bathroom, bedroom, toilets and other places, which can effectively the occurrence of danger, keep your family safe. WITH SOUND AND LIGHTCarbon monoxide is detected through the air inlet, and when the concentration reaches a certain value, a sound and a warning light are issued. The concentration is different and the interval time is different. When 50ppm is reached, the alarm sounds at 60-90 minutes, when 100ppm is reached, the alarm sounds at 10-40 minutes, when 300ppm is reached, the alarm sounds at 3 minutes. LED DISPLAYWhen carbon monoxide leakage is detected, the LED display will display the current value according to the gas concentration (less than 30 PPM will not be displayed), allowing you to know the indoor carbon monoxide concentration in real time. HIGH SENSITIVITYAdopt high sensitivity, high stability chip, strong sensitivity to carbon monoxide molecules, avoid other gas interference, accurate and reliable. BATTERY POWEREDBattery powered, cordless design. Requires just 2x 7V battery (not included) to power the dtector for months at a time. No need to change batteries frequently. Specification: Material: ABS Color: White Size(WxHx Thickness): About 60x60x25mm/2.36x2.36x0.98inch Powered by: 2x 7V battery(not includes) Package includes: 1pc x Carbon Monoxide Detector 1pc x English manual 1pc x Screw pack Note: 1. Due to the light and screen difference, the items color may be slightly different from the pictures. 2. Please allow 1-2 cm differences due to manual measurement.