The system is small in volume, easy to carry, easy to operate, convenient to work with, stable and reliable in performance.  Applications    · Suitable to detection in mining working face of 200m-400m...

The instrument has an adjustable light source of high brightness, good anti-dust and waterproof properties.  Applications· Quality detection of gas drainage borehole· Fracture detection in separation layer of shaft...

It is composed of central monitoring station long distance communication,real time monitoring system through network connection. Applications:·  Water pressure real time observation and recording during mining operation at working face, thus fast...

Measurement while vertical holes, horizontal holes, elevation holes and branch holes were drilled. Main applications: coal mine with high gas, high dust and high humidity, useful for measurement while vertical holes, horizontal holes, elevation holes and...

6 channels data. It has sampling rate of optional gaps, resolution of 24 bits, dynamics up to 120db and 4 recording lengths.  Applications·In advance detection of small structures ahead mine working face, for example, fault, fractured zone, coal...

thickness of impermeable layers and aquifers, relative water abundance of aquiferous geological bodies within 100m below shaft f  Applications ·Water-abundance zone detection in shaft floor·Thickness of impermeable layer in shaft floor,...