Specifications:
* Small size, easy to carry, can be used on the pocket, will not affect the examination of candidates
* Simple operation, only the third gear switch (Vibration On, Off, Sound-opened)
* The accuracy rate is as high as 95%
* More than 10 hours of continuous work and do not replace the battery, charger own
* Can be a permanent use
* Show the distance a signal source (the more light that the more recent source)
* This product is only a detection equipment, the use of passive detection mode, does not emit electromagnetic wave, and thus will not interfere with any wireless communication facilities and equipment, more candidates will not have any risk of adverse health effects of radiation
* Detection Frequency: 0.1GMHz-5.8GMHz
* Power Supply: 4V 600mA
* Detection Range: 0.5-15 meters (about 20-150 square meters)
* Identify Direction:
