Sound Level Meter HD 8701 Decimal Measuring

Missing back battery cover but still works perfectly.

 The noise levels can be easily read in dB on the large LCD display which also shows all the information concerning the mode of operation of the instrument.

One second after switching on and with a resolution of 0.1 dB, the digital reading gives the continuosly updated value of the RMS sound pressure level, with a type A frequency weighting. The single range from 30 to 130 dB further simplifies the use of the instrument, as the user does not have to change scale.

Through the keyboard the following operations are possible:

• selecting the time constant S/F
• displaying the maximum value recorded “MAX” and zeroing it “RESET MAX”, freezing the indication on the display “HOLD”

• When pressing ON/OFF key the instrument switches on; by pressing it again, instrument switches off
• S/F key allows to select selecting the time constant
• By hold the MAX key, you display the maximum value considered automatically by the instrument, by the switching on or since pressing RESET MAX
• Automatic shutdown of the instrument in measuring can be disabled by moving the jumper in the battery compartment