This is sound power tester, it can detect how much sound from any source and show the power of sound by 10 LED. It is suitable for 2 group of student in class room to show the power of clap of each team.

After MIC detect the sound, it will show the power by amount of LED. Just press the reset SW when you want to detect the second sound for comparison.

Technical information:
- Require Power Supply 9VDC
- MIC on board
- 1 pot to adjust the sensitivity of MIC
- 1 pot to adjust the level of light to suitable with the environment
- Current consume 50mA  / Stand by at 20mA
- 10  3mm RED LED
- PCB size 2.29" x 1.11"
- comes with the schematic and English user paper

 Download User Manual