Application field 1. Pile integrity inspection; 2. Inspect concrete structure inner defects, concrete junction surface quality, surface damage layer thickness; 3. Concrete compression strength inspection; 4. Concrete crack depth inspection; 5. Rock, concrete wall and other non-metal materials wall of hole integrity inspection; 6. Rock, concrete and other non-metal materials mechanical strength test. Technical specifications ItemIndexItem Index Main control unitEmbedded ipcIndication unit640*480 tft lcd Operation modeKeyboard+opticalelectric knobStorage unit1g+1g u flash disk General interface Usb interfaceMax lifting speed60m/min(20cm measure) Channel numberDouble channelMax sampling length64k Trigger modeContinuous emission, outter triggerEmission voltage65, 125, 250, 500, 1000 available Receiving sensitivity 30uv Amplifier gain82db Amplifier band width 5hz-500khzSampling interval 0.05-6.4us, 8 steps optional Sound time accuracy0.05usAmplifier resolution0.39% Power supply modeHigh quality li battery for 6 hours continuous workSchmidt hammer outer connection Yes Polywood case, meet exporting packing requirements