Power Source:120VAC, 60HZ, 60mA, Sensor:Electrochemical, Audio Alarm:85dB at 10ft, Temperature Range:40F (4.4C) to 100F (37.8C), Humidity Range:up to 85 PCT relative humidity (RH), Size:4.83INx 4.76INx 1.49IN, Weight:.62lbs with battery, Wiring:Quick conn