Digital Engine Knock analyzer DEKA

Digital Engine Knock analyzer DEKA


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“DEKA” Digital Engine Knock analyzer can analyze engine knocking in real time.

Engine knock sound can be recorded in “.wav file”.

Waterfall chart, spectrum chart, scope chart.

Automatic knock frequency setting by cylinder bore size.

Band-pass filtered knock monitor sound.
(Headphone output is necessary for PC. Headphone is not included in the DEKA system.)

Vibration analysis.

Screenshot of chart.

Waterfall chart display frequency range 100 Hz to 16 kHz.


Analysis procedure of engine knock by DEKA system

  1. Attach the DEKA knock sensor to the engine block.
  2. Connect the knock sensor to the DEKA system main unit.
  3. Connect DEKA system to Windows PC with micro USB cable.
  4. Connect headphones to Windows PC.
  5. Start the DEKA software and band pass filter the knock frequency in the cylinder bore or manually.
  6. Frequency image analysis is performed while monitoring engine knock sound limited to knock frequency.
  7. Record the engine sound with DEKA software and analyze the knock situation.


Product include

  • DEKA main unit   x 1
  • Knock sensor   x 1
  • Knock sensor cable (sensor to RCA)  x 1
  • 2 way RCA cable (RCA to 3.5mm 3P Jack)   x 1
  • USB(A) to USB(micro) 1.5m cable x 1
  • Software (USB memory)  x 1

One “Knock sensor kit” included.
For 2ch measurement, an optional “Knock sensor kit” required.
PC and headphones are not included.


Required System

Intel® Pentium® 4 or AMD Athlon™ Dual Core, 2.3 GHz or higher.

2GB RAM (minimum)

Display Resolution
1280 x 1024with true color (minimum)

Hard Disk or SSD
2 GB for installation

USB 2.0 port

Audio output
Headphone audio output (When hear knocking sound)

Microsoft® Windows® 7, 8, 10  (32 or 64bit)
Windows XP, Vista (32bit only)also works, but it is not guaranteed because support of Microsoft is finished.

.NET Framework
.NET Framework Version 4.0



DECA online instruntion manual.



DO NOT connect Knock sensor RCA connector and 3.5mm Jack directly to Audio amplifier or PC.
Sensor outputs is high voltage, Audio Amplifier or PC break down.

Additional information

Weight 0.5 kg
Dimensions 12 × 15 × 8 cm

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