REED Instruments R8050 Sound Level Meter, Type 2, 30-100 and 60-130dB, +/-1.4 dB Accuracy with NIST Calibration Certificate
The REED Sound Level Meter meets IEC651 Type 2 requirements, It has a hi/lo dual range measurement and "A&C" frequency weighting, The meter has a large, easy to read LCD display and a 1/2" electret condenser microphone for high accuracy and long-term stability. Mount the meter on a tripod for long term monitoring.