The Gentex GEC312WR fire alarm comes from the Commander3 series. It features a low profile horn and strobe combination with reliable audible and visual alarms at the lowest current available. Its minimum flash rate is 1Hz regardless of input voltage. This order comes with a red faceplate.The Gemtex Commander3 series horn offers many options: a continuous or synchable temporal three in 2400Hz and mechanical tone, a chime and whoop tone. All tones are easy for the professional to change in the field. The Commander3 Series is shipped with the standard 4" metal mounting plate which incorporates the popular superslide feature that allows the installer to easily test for supervision. The product also features a locking mechanism which secures the product to the bracket without any screws showing.Gentex does not recommend using a coded or pulsing signaling circuit with any of their strobe products. This Gentex evacuation horn and strobe is not listed for outdoor use.