Water Detection System Alarm Sound Level 110 dB Alarm Unit Dimensions 3 in W x 1.5 in D x 4.125 in H Includes Batteries No Maximum Operating Temperature 104 Degrees F Mounting Location Wall Operating Voltage 9V DC Detector Type Water Detector and Alarm Power Source Battery Alert Type Sound Current 0.08 A Features Resettable Testable Market Commercial Minimum Operating Temperature 40 Degrees F