Alert device with automatic alarm function

The utility model relates to an alert device, concretely relates to alert device with automatic alarm function. It includes the support, sets up the voice alarm device on the support, be provided withpyroelectric infrared sensor and the control unit on the support, pyroelectric infrared sensor passes through the control unit and is connected with voice alarm device, the utility model discloses apyroelectric infrared sensor can respond to the human infrared of certain limit as induction system, pyroelectric infrared sensor to voice alarm device carries out the audio alert warning through thecontrol unit control, adopt the utility model discloses carry out the security area setting, have and set up swift convenience, warning suggestion advantage such as effectual. 本实用新型涉及种警戒装置，具体涉及种具有自动警示功能的警戒装置。其包括支架、设置于支架上的语音报警装置，所述支架上设置有热释电红外传感器和控制单元，热释电红外传感器通过控制单元与语音报警装置连接；本实用新型采用热释电红外传感器作为感应装置，热释电红外传感器能够感应定范围的人体红外辐射，并通过控制单元控制语音报警装置进行语音报警警告；采用本实用新型进行警戒区设置，具有设置快捷方便，警戒提示效果好等优点。