882A New Digital Sound Level MeterDetailed product description：

882A New Digital Sound Level Meter

function
Digital display: 5 digits LCD
Measurement level: 30-130 dBA, 30-130 dBC
Resolution: 0.1dB
Accuracy: ± 1.5 dB (under reference conditions)
Frequency range: 31.5 Hz~8.5K Hz
Linearity range: 50 dB
Frequency weighting characteristics: A, C
Bar graph: 50 dB scale at 1 dB step for monitoring
Measurement range Level ranges: 30-80 dB; 50-100 dB；
60-110 dB； 80-130 dB.
Dynamic feature Time weighting: Fast/Slow
Microphone: 1/2 inch Electret Condenser microphone
Max: Maximum hold
Power supply Power supply: 1*9V alkaline cells or DC 9V adapter < Power life: About 30 hrs >.
Self calibration time: 10 seconds (every turn on)
Dimensions of the body: 220 × 67 × 32mm
Weight: Approximately 210g (including battery)