1. It is designed according to the IEC651 TYPE2 & ANSI S1.4 TYPE2 2. Modern,compact,portable design 3. Accuracy up to +-1.5dB 4. Measurement range: 30dBA-130dBA 5. Max hold 6. Auto backlight display 7. Auto power off 8. This equipment has been designed to meet the measurement requirement of safety engineers, health, industrial safety offices and sound quality control in various environments, which included factory, office, traffic, family and audio system 9. Accuracy: 1.5 dB 10. Digit & Resolution: 4 & 0.1 dB 11. Frequency response: 31.5Hz ~8.5KHz 12. Sampling rate: 2times/second 13. Digital display: 4 digits
