Krown Wireless Transmitter,65mm x 40mm x 17.5mm,Each,KA300TXPrice: USD49.95 Krown Wireless Transmitter connects to any audible alarm and sends signals to Krown Alarm Monitor Receiver (Code K-KA300RX). It can be placed on any detector such as smoke, fire, CO2, security and etc to turn all the audible alarms into one monitoring system. Great for use in home or office.Other products from H e a l t h P r o d u c t s F o r Y o u |