Model AV1-LED is a combination audible/visual signal. The AV1-LED features a 100% polycarbonate housing that is rated for type 3R raintight applications. Available dome colors include Amber, Blue, clear, green and Red. The AV1-LED design provides three mounting configurations. The black base will accommodate mounting to a 1/2-inch NPT pipe, a 4-inch octagonal electrical box or any flat surface. The surface mount gasket serves as a template for preparing a flat surface with appropriate mounting holes. All AV1-LED units feature a unique twist-and-lock dome design to allow for tool-free access to the LED. The fresnel lensing provides superior visibility in all directions. The integrated buzzer provides 85dBA output at 10 feet (95dBA @ 1 meter). The unit is capable of independent flashing light and sounder operation. The LED can be field adjusted to two flash patterns, 60 FPM or 75 FPM, via a jumper on the PC board. The AV1-LED comes in two voltage variations: 24VDC and 120VAC. Each unit is factory assembled with two color-coded leads. If desired, the user can remove the leads and connect directly to the terminal block located in the base of the unit. The AV1-LED is UL and cUL Listed.