An apparatus for testing fire alarm systems allows for the remote resetting of a fire alarm system without being present proximal to a fire alarm control panel (FACP). The apparatus may also be used to test one or multiple notification appliances. The apparatus includes a portable control unit that is connected to the wiring of multiple notification appliances through a plurality of notification appliance circuit (NAC) connection terminals on the FACP or directly to a single notification appliance. An actuator for resetting a fire alarm system reset switch may be mounted to the FACP through an adjustable bracket. The length of the adjustable bracket may be adjusted in order to increase the versatility of the apparatus. A transmitter and a receiver may be utilized to remotely activate the fire alarm system reset switch as well as to activate one or multiple notification appliances during testing.