![2N® Helios IP Verso™ 1 Module Surface Mount Front Frame [9155021]](http://emacspruebaamerica.myshopify.com/cdn/shop/products/9155021_grande.png?v=1494920753)
Reference:
9155021
The 9155021 is a Single-Module Surface-mount Frame for use in completing a 2N® Helios IP Verso™ Modular Door Intercom system. Size: 107x130x28 mm.