الوصف

1.Working Principle:
 
       Adopting modern micro-electronics technology, this device can give out  2 kinds of electronic waves simultaneously and alternatively: super-low electro-magnetic wave and ultra -sonic wave ,which can act upon the hearing and the nervous systems of the mice and make them unpleasant and uncomfortable. So the mice will flee away.
       Adopting the new electronic circuits and new ultrasonic transducer, SD***2 is made out by summing up our experiences in the marketing and technologies for nearly *0 years.So SD***2 has  better effectiveness and higher efficiency.
 
2.Usage /Coverage:
 
       (1). Mainly SD***2 can expel the mice. Also it can have some restraints to the following pests: cockroach, ant,spider,cricket,bug,flea,even mosquito etc.
       (2). SD***2  can be used in the following places: family,ware-house,shop,hotel,Restaurant,hospital,office,machine room,garden，grain depot etc.
    (3). The effective coverage is around **0 square meters. Using one device is enough for a family. Certainly  effectiveness will be better if two devices used.
 
3.Operation Methods:
 
       (1). Just plug the device into the socket of AC**0V/*0Hz main power line.The device begins working when the red and green LED flashing.
       (2). Electro-magnetic wave is working when the red LED flashing and stops working when the red LED putting out .The frequency of the red LED flashing is synchronous with the electro-magnetic wave.
       (3). The ultrasonic wave is working when the green LED flashing. The frequency of the green LED flashing is synchronous with the ultrasonic wave. The ultrasonic wave is always working so the green LED is always flashing.
 
4.Cautions:
 
       (1). Never use the device outdoors and never put it in high-temperature and moist places.
       (2). AC **0V/*0Hz power system must be confirmed before using it.
       (3). It should be used continuously without stopping.
       (4). It should be installed as low as possible from the ground because most of the mice living on the ground.
       (5). The effects will be seen after SD***2 used. But the best effects will be reached after using it continuously for **4 weeks.Sometimes the mice may be more active at the beginning which shows the mice have been irritated.Then the mice will be away after a period.Even not flee away at once,the mice will become listless, poor appetite and will lose their reproduction and invasion ability.
 
 
5.Specifications:

      (1). Power Voltage: AC**0V/*0HZ
      (2). Power Consumption: less than *0W.
      (3). Frequency Coverage:
            Super low electro-magnetic wave:: 0.8HZ****8HZ    
            Intermittence:  **0  seconds
            Ultra-sonic waves :  *4KHz /*5—*5KHz
                 
      The electro-magnetic wave produced by this device only hasa frequency as low as several hertz. Also the frequencies of the ultra-sonic waves overpass the audio range of the human-being. Meanwhile the output of the 2 waves is very small. A special inspection report has been made by the authorities which shows thatthe electro-magnetic radiation level for this device is far more lower than the European Standards and National Standards. So this device has no any harm to the human-body.