SRL-1 The VK-SRL-1 is an advanced loud ring indicator designed to ensure you never miss a call or alert. The bright flashing ring LED is visible from over 100 feet, making it perfect for large spaces. It features a loud ringing sound sourced from both analog lines and dry contact closures. Choose from four distinct ringing sounds to suit your preferences: an electronic warble, double gong, quadruple chime, or electronic bell. The adjustable volume control allows you to set the sound to your desired le

<p>The VK-SRL-1 is an advanced loud ring indicator designed to ensure you never miss a call or alert. The bright flashing ring LED is visible from over 100 feet, making it perfect for large spaces. It features a loud ringing sound sourced from both analog lines and dry contact closures.</p><p>Choose from four distinct ringing sounds to suit your preferences: an electronic warble, double gong, quadruple chime, or electronic bell. The adjustable volume control allows you to set the sound to your desired level, and a test button ensures the volume is set correctly. An external 8-ohm speaker can be added for increased sound coverage. This device serves as an ideal door chime solution, suitable for doorbells, open sensors, or push-for-assistance buttons.</p>