Product Specification: The Pile Integrity Tester (PIT) gives  a pile or shaft is free of major cracks and voids, prior to construction of the superstructure. It may be used on most concrete or wood foundations. The PIT may also be used to test piles integral in the structure, such as those supporting existing bridges or towers, and may assess their length. The PIT performs wave equation-based non-destructive foundation investigation known as Low Strain Impact Integrity Tests or Low Strain Dynamic Tests. These test may be performed by the Pulse (or Sonic) Echo or Transient Response Methods. With the PIT, any form of the test is performed fast, potentially making it possible to test every pile on a job site.
Technical Specifications :
 Model Number     NL 4047 X / 001
 Noise Voltage of The System (mV)     ≤2
 Dynamic Range (dB)     ≥184
 Amplifier Frequency Band (Hz)     1 - 10 k
 A/D Resolution     24 bit A/D
 Sampling Time Intervals     1  μs - 6400 μs
 Max. Length of Sampling     ≥4096
 Amplitude Nonlinear Degree     ≤10%
 Error of Time Indication     ≤1%
 Gain Error     ≤1 dB
 Fixed Point Magnification     1,2,5,10,20,50,100
 Number Of Channels     2
 Phase Position Consistency of Two Channels     ±3° 0.05 ms
 Inter-channel Interference     ±3%  ≤±0.2dB
 Triggering Mode     ≤1%
 Acceleration Transducer Sensitivity (mV/g)     ≥100 mV/g
 Frequency Range of Acceleration Transducer     0.5 - 9000 Hz
 Continuous Operating Hours     > 5 hrs
 Power Supply Mode     Rechargeable Lithium Battery Inside DC 9V
 Weight     1.3 kg
 Dimension     300 (L) x 500(W) x 950(H)
 Display     5.7 inch, TFT True Color LCD

Ltekonline are the manufacturers of Concrete Pile Echo Tester used to demonstrate engineering principles in Engineering Colleges, Engineering Schools and Concrete Testing Lab Equipment for Engineering Teaching Lab in Universities