The Dome™ Home Automation DMS01 Siren offers ten user selectable sounds with three volume levels (at up to 105dB) and adjustable siren timeout (30/60/300 seconds or infinite). It includes a functionality of an alarm siren, doorbell and an audible chime notification when door/window opens (advanced settings subject to Z-Wave Hub compatibility). Additional visual notification is provided by built-in flashing LED’s when triggered. One of a kind device on the market with 100% battery operation allowing for easy installation anywhere in your home. There is a 3-year battery life, so you can always be confident that your siren has power. Extra-long Z-Wave wireless range (up to 150 ft) allows you to place it where it’s needed without worrying if the signal is reaching your Z-Wave Hub. Dome™ DMS01 Siren comes with a 1-year limited warranty. Measurements in inches: 2.625 x 2.625 x 1.125. Dome™ Home Automation Z-Wave devices give your family peace of mind and security you can count on. With Dome™, you’re always connected and always covered.