Title: 9V Wireless Smoke Sensor Detector with Battery Alarm System Home Security. NEW Wireless Smoke Detector Fire Alarm For Home Alarm. Standalone smoke alarm smoke detector sensor for my wireless alarm. Popular 9V Wireless Smoke Sensor Detector Home Security Alarm System. Description Wireless Smoke Detector For Alarm System Specification: Power Requirements: 9VDC Current Consumption: less than 10uA in idle mode;10 to 30mA while alarm Sensitivity of Smoke: accord with UL NO.217 standard Coding Type: Fixed Code Intensity of buzzer' volume: 85 decibel 10 foots Humidity: 10% to 90% Package Including: 1X Smoke sensor 1X Manual In Original Package