KKmoon Plug-In Combustible Gas Detector Alarm Sensor with Voice Warning and 9-Volt Battery Backup

Features: Human voice prompt. High reliable catalytic combustion method. Gas concentration displaying(PPM). Power supply from AC 90V-240V or 9V rechargeable battery (Not included). Intelligent microprocessor control. Auto low battery warning. Alarm memory function. Auto detect sensor failure. Specifications: AV voltage: AV 9V-240V 50-60Hz Battery voltage: 9V rechargeable battery Working temperature: 0-50℃ Environment humility: 10%-95% Alarm density: 2500PPM(±1500PPM) Alarm time: keep alarming after over 2500PPM Product Size: 112 * 73 * 42mm / 4.0 * 2.8 * 1.6in Product weight: 161g / 5.69oz Package size: 11 * 5.5 * 14.5cm / 4.4 * 2.2 * 5.7in Package weight: 202g / 7.11oz NOTICE: The gas detector is easy to be effected by the sharp pounding and shock in transit or installation, to not work. This is a Combustible Gas Detector, can not detect the poisonous gas such as CO. Scheduled maintenance: surface cleaning per month, specialist inspection per half year. Do not use the detergent to the gas detector, this will damage the gas detector. Do not spray any sprays such as air freshener, hair spray, etc. This product is only used to reduce the accident, cannot make sure every time. Except use our detector in right way, pleasure pay more attention in your daily life and strengthen safety and consciousness. Package List: 1 * Gas Detector 1 * Pack of Mounting Screws 1 * User Manual(English)

Human voice prompt. High reliable catalytic combustion method. Gas concentration displaying(PPM). Power supply from AC 90V-240V or 9V rechargeable battery (Not included). Intelligent microprocessor control.