Audible Alarm Type Siren, Visual Indicator Type No Visual Indicator, Voltage 24V DC, Decibels 0 to 105dB, Sound Pattern Continuous, Indoor/Outdoor Indoor, Mounting Pivot/Swivel, Height 11 in, Width 6.125 in, Depth 8.7813 in, Vibrating No, Housing…
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzes reviews to verify trustworthiness.