The PSPL05R from Pyle Pro is a compact and portable digital sound level meter that conforms to the IEC61672-1 Class 2 standard for sound meters. It has a built-in 0.5" electret condenser microphone that has a frequency range of 31.5Hz to 8kHz, and a level measuring range of 30 to 130dB. It is accurate to within ±1.4dB under reference conditions and uses A and C type frequency weighting.