Product Name: Fire Alarm White Smoke Detector Alarm Model NO.: TSS891B-HI Infrared Sensor Installation: Ceiling Types of Smoke Detectors: Photoelectric Smoke Style Type: Smoke Detectors Power Source: AC220V-AC240V, DC 9V Battery Backup Operation Current: <=100mA Alarm Sensitivity: 0.09-0.15dB/M Comply with Standard: En 14604:2005/AC:2008 Alarm Volume: >85dB(a) @ 3 Meters Low Voltage Threshold: <=7.5V Hush Time: 10minutes Product Service Life: >10 Years Humidity Range: < 95% Relative Humidity (Rh) Temperature Range: -10c to 50c Size: 140mm in Diameter X 44mm Depth Trademark: JBE Specification: White Origin: Zhejiang, China Product Description Carbon monoxide detector battery operated white CO detector alarm for homePower SourceAC220V-AC240V,DC 9V battery backupOperation Current<=100mAAlarm Sensitivity0.09-0.15dB/mComply with standardEN 14604:2005/AC:2008Alarm Volume>85dB(A) @ 3 metersProduct service life>10 yearsSize140mm in diameter x 44mm depth