Products Products Categories Smart Products Accessories Transmitter Module for Video Door Phone Transmitter Module for Video Door Phone Yale YRM20 AMC is a transmitter used to connect Yale Smart Lock to Video Door Phone. It establishes a wireless Connections between YRM20/YRM 20 N ( which is inserted inside the lock) and YRM20 AMC ( connected with Video Door Phone). It can connect Yale Smart Lock with video door phone of any brand. It Operates on 12 V DC Find a Yale Partner Similar products Yale Link Wifi BridgeYale Link Wifi Bridge, Access from Anywhere Yale Link Bluetooth ModuleYale Link Bluetooth Module Remote Control for Smart LocksRemote Control for Smart Locks