红外传感器单元的传感器单元，PIR传感器m

PIR sensor module ,Infrared sensor module,sensor module Features: 1:Power supply:(1) battery power supply (three AA batteries)(2) DC power supply(DC 7 12V) 2.Automatic voice playback, without hand operation 3.Built-in 8M Bit SPI-Flash, can play the voice for 340 seconds(at the sample rate of 6K).Can enlarge the size of FLASH (1M to 32M) according to the special situation. 4.Support WAV sound files at the sampling rate from 8KHz to 24KHz.If not WAV sound files, can use the professionnal voice conversion softwares (such as GoldWav) to convert. 5.Built-in amplifier,can drive 0.5W/8Ω speaker directly. 6.Can update the voice many times, support the USB download mode. 7.Adjustable volume, can be used in various environments; 8.Matched with the simple PC software which is powerful,easy to operate.All settings can be completed in the software. Applications: Can be used in variousoccasions,such as Mall, Store,Electric cabinet, Office building, Billboard, The remote areas in the park,Military restricted area etc.