Z-801TxB is the sensor signal transmitter module. It connects up to 3 IAS Zone sensors and transmits command signals to the enrolled or bound CIE (the IAS control center) to notify the user. It integrates the EM250 chip that utilizes 2.4GHz ISM band transceiver. Fully compatible with ZigBee Pro and is communicable with ZigBee network routers, coordinator and end devices.