Silent Call Silent Call Signature Series Sound Monitor Transmitter The Silent Call Signature Series Sound Monitor Transmitter signals a receiver when it detects sounds around your home that are longer than 3/4 of a second, with range of up to 2 000 feet. Requires a... MSRP: Was: Now: $91.95
Silent Call Silent Call Signature Series Weather Alert Transmitter The Silent Call Signature Series weather alert transmitter plugs into the Weather Alert Radio to notify you of severe weather by signaling a Silent Call Signature Series receiver. Requires compatible... MSRP: Was: Now: $99.70
