RD316 manhole covers/valve detector used patent field balance technology, can detect the magnetic field around the metallic objects. RD316 near or leave the magnetic objects, also is in the edge of the magnetic objects, will get peak response, and at the same time, voice prompt will be enhanced, which can be roughly to determine the size and shape of the object.
RD316 is a magnetometer, detection is the object of the remanent magnetization, so it only for ferromagnetic metals have reaction, and from copper, aluminum and other nonmagnetic metal influence.
RD316 light weight, simple operation, a waterproof and operation comfortable and so on characteristics.
Features:
The operation is simple, with one hand control volume and sensitivity
Aluminum sensor, the waterproof design
Light weight, a waterproof and operation comfortable and so on characteristics
Low power display alarm
Degaussing device can shield off the influence of the magnetic field