Alpha RTM3A 3 Pushbutton 2-Wire ALP Module

3 Pushbutton 2-Wire ALP Module With Built-in L.E.D. Prism Illumination. Operates on 8-12V / 40 MA. The RTM3A push button is designed to be used Alpha Communications® S.T.R.™ modular series door entry stations. feature LED illumination and plug-in connector for easy wiring maintenance. 3.94"w x 3.94"h (100mm 100mm), made snap into MT panel trim frame(s). service module, once installed, use model 13510 key tool unit.