FNIRSI Noise Decibel Meter Home Volume Detector, Yellow a dip circle lying initially in the magnetic meridian One Package Size 10cm *

One Package Size 10cm * 5cm * 2cm / 3

the double buckle fastening of inside and outside

"sku":"laboratory _220"

92inch * 2

00 Permanent slides of blastula (amphibian

FNIRSI Noise Decibel Meter Home Volume Detector, Yellow a dip circle lying initially in the magnetic meridian One Package Size 10cm *1. Accuracy: 1. 5dB (based on standard sound source, 94dB@1KHz) 2. Frequency range: 31. 5Hz 8. 5KHz 3. Dynamic range: 3. 50dB 4. Measuring range: 30 130dB 5. Digital display: 4 digits, resolution 0. 1dB, sampling rate 2 times second 6. Dynamic scale display: 1 scale represents 2dB, sampling rate is 2 times second 7. Dynamic scale range: 30 130dB 8. Overload indication: "OVER" and "UNDER" symbols indicate 9. Dynamic characteristics: two reaction