Model: SL821
Accuracy: ± 1.5 dB (in the reference sound pressure standard: 94dB @ 1 kHz)
Frequency response: 31.5 Hz to 8 kHz
Dynamic range: 50dB
Measuring range: 30~130 dBA; 35~130 dBC
Frequency weighting characteristics: A and C characteristics
Dynamic characteristics: FAST (fast), SLOW (slow) reaction rate
Microphone: 1/2 inch polarized condenser microphone
Maximum value lock: MAX
Digital display: 4 digits, resolution 0.1 dB, sampling rate 1s
Analog stick display: 1 grid represents 1dB, sampling rate is 125ms
Measurement gear: 30 to 80dB, 50 to 100dB, 60 to 110dB, 80 to 130dB
Measurement functions: sound level (Lp), equivalent continuous sound level (LAeq), exposure sound level (LAE), and C-weighted noise peak (LCpeak)
Storage function (processing results are stored manually): 10 groups (storage points can be recalled and displayed)
Overload indication: "OVER" and "UNDER" symbols indicate
signal output: 0~2.5V, 25mV/dB, output impedance is about 600Ω
Power supply: 9.0V, 1 6F22 battery; or DC9.0V, 100mA voltage converter
Battery life: about 8 hours (alkaline battery, without backlight)
Operating temperature and humidity: 0~ +40℃; 10 ~80%RH
Storage temperature and humidity: -10~ +60℃; 10~ 70%RH
Dimensions: 240 (length) x 110 (width) x 60 (height) mm
It can measure sound level (LP), equivalent continuous sound level (Lep), maximum sound level (Lmax), exposure sound pressure level (LE) and noise peak value (Lcpeak).
A-weighted and C-weighted two frequency characteristics.
10 sets of data storage.
Package: 1*Sound Level Meter (without battery)
Note:
1. Please Allow 1-3cm Differs Due To Manual Measurement.
2. Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.Please refer to the received product. Thank you for your understanding.