Meets IEC61672-1 Class 2 standards Features self-calibration and analog output 1. Large LCD display for easy reading 2. Frequency weighting network design compliant with IEC651 type2 standards 3. A and C frequency weighting networks 4. Fast/slow time weighting characteristic selection mode 5. AC/DC voltage signal output interface for easy connection to recorders or controllers 6. High-precision capacitive microphone 7. Peak hold function to store instantaneous maximum values 8. Over/under measurement warning indicators 9. Slim and lightweight design for easy one-handed operation 10. Low power indication function