Z-601A/B is a siren used in emergency case and based on ZigBee HA standard. It can join in the network and bind with other devices and acts as a CIE device. As soon as it receives the alarm message from the bound devices, it will generate the alert sound. Four different alert sounds: fire alert, emergency alert, burglar alert and doorbell sounds. Users can set up the preferable alert sound in the SW based on the actual requirement. Moreover, the dialer of Z-601B can dial to the preset number for remote emergency alert .