Selectable A/C weighting (When the weighting switch is set to A, the meter primarily measures frequencies in the 500 to 10000 Hz range, which is the area of greatest sensitivity to the human ear. When set to C weighting, themeter measures uniformly over the frequency range of 32 to 10000 Hz, giving an overall sound level indication.)

I need an inexpensive type 2, a scale (ansi apprto measure inside my house of outdoor muffler on truck. one that will hold data. recommendations?

The Reed R8080 is a data-logging sound level meter.

Is R8050 Calibrated when I purchase it?

Thank you for contacting us. Please note that this item is not calibrated. The calibrated p/n is R8050-NIST.

If i buy the version without nist certificate, does it mean i have to calibrate the unit myself before use?

The manufacturer (Reed Instruments) recommends that the meter be calibrated after any extended time without using it or if it is used in extreme conditions. It is recommended that you purchase the R8090 calibrator in addition to the sound level meter to perform the calibration. Even if you purchase the version that includes the calibration certificate you would still need to perform your own calibration regularly to achieve accurate results.

Item Weight	454 g
Product Dimensions	60.96 x 60.96 x 60.96 cm; 453.59 g
Item model number	R8050
Signal Format	Analog
Power Source	Battery Powered
Voltage	9 Volts

R8050 Dual Range Sound Level Meter

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