35dB to 105dB SPL (0dB = 2x10-4 μbar)
(10dB step 5 range switching between 50dB and 90dB)
[Meter response speed]
FAST:
Rise 350msec, fall 400 msec.
SLOW:
Rising 550msec, falling 2sec.
[Microphone part]
Model:
Back electret condenser type
Directional characteristics:
Omnidirectional
Front sensitivity:
-72dBV / μbar (1kHz)
Frequency characteristics:
20Hz to 20kHz
Maximum input sound pressure:
110dB SPL (0dB = 2x10-4 μbar)
Output impedance:
600Ω unbalanced type
Power supply:
1.5V (SUM-3x1)
Battery life:
1500 hours (When using National High Top during continuous operation)
Cord length:
4m
[Body]
Power supply:
9V battery (S-006P x 1)
Battery life:
10 hours (During continuous operation)
External dimensions (W x H x D):
430 x 53 x 158mm
Weight:
1kg
Year:
Around 1982
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