Alert uses both a flashing strobe and a programmable chime
Great for deaf and hearing households
Product Description: The Strobe/Chime Receiver plugs into any AC outlet. A 10-second flashing strobe accompanies all tone selections. Audible chime sounds in 8-note, 2-note or 1-note tones. Includes wireless transmitter push button and battery. To start, simply insert one 12-volt alkaline type A23 or MN21 button battery. Plug the chime into a 120-volt wall outlet. You may either mount the button or carry it for use as a paging device. Also useful when left with someone who is bedridden. Pressing the button will alert you to their call by strobe and chime. Excellent for deaf and deaf/hearing households. 100 ft. operating range. The door chime has 64-code variations to prevent mixing or crossing signals with other Nutone receivers.