Safety Siren Pro 3 Radon Gas Monitor Detector, 3/BX
EPA Evaluated. Home radon monitor. Ionization sensor. 85db mutable alarm sounds at 4 pCi/L or higher for long and short term readings. Accuracy: +/- 20% pCi/L. Averaging Frequency: Hourly.
Gizmode Water Alarm Detector WA01 9V 110 dB
110+ db alarm for carpet or hard surface moisture. Alarm duration: up to 72 hrs. Outer shell: ABS plastic. 4 stainless steel sensors. 3" diameter x 3" high. 9V battery (not included).