Wheelock Wheelock Universal Tel Alert
Choice of 4 Selectable Sound Patterns. Choice of 4 operatingvoltages. Operates directly off telephone line. Low REN. Easy Dip switch selection with field selectable tones. Indoor and Outdoor Installation. Tamper resistant volume control. Weather Resistant. FCC, DOC and UL 1459 Approved. UTA with Strobe requires 115VAC.