The Wheelock® ExcederTM horn strobes incorporate high efficiency optics to minimise current draw to allow a greater number of appliances on the notification appliance circuit. All strobes feature an industry first of 8 candela settings on a single appliance and audables feature 3 sound settings of 90, 95, 99dB. Switch settings, can be changed without the use of a tool and are located behind the appliance to prevent tampering. Wall models feature voltage test points for troubleshooting and AHJ inspection.