Power : 9vdc battery
Heat sensor set point: 113 degrees Fahrenheit ( 45 degrees Celsius)
Relative humidity : 0 % to 95 % rh
Sound : loud 85 dB alarm signal
Test function : press testing button
monitoring LED : every 35 seconds
Alarm LED : flash
Material : ABS polycarbonate
Low battery warning : unit beeps every 35 seconds for 7 days ( minimum) to indicate
battery need replacing
battery life : over one year