TENMARS TM-102 ເຄື່ອງວັດແທກລະດັບສຽງ (30~130dB)

Specification:
- Test ranges: 30~130dB.
- LO: 30~80dB
- MED: 50~100dB
- HI: 80~130dB
- Accuracy : +/- 1.5dB(ref 94dB @1KHz)
- Resolution : 0.1dB
- Microphone:1/2 inch Electret condenser microphone
- Frequency Weighting : A, C
- Time Weighting : FAST,SLOW
- Dynamic Range : 50dB
- Frequency Range : 30Hz~8KHz
- Auto Ranging , Auto Power Off, Data hold, Max/Min
- Dimensions, mass: 200x55x38mm,290g