Yale 784 Power Supply 2.1 TO 3.0 Amps, 9 Volt VDC
The 784 Yale Power Supply is required for electric latch retraction and is designed to control one or two electric latch retraction exit devices. The Yale 784 is required for use with the latch retraction option. Using any other power supply with the option voids the warranty of the device. 784 Power supply (9VDC) includes a plug-in wall transformer