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Description

407780A Extech Sound Meter NewExtech 407780A Integrating Sound Level Meter Key Features at a Glance Measurement parameters: SPL, SPL MIN MAX, SEL, and Leq with programmable integrating time Measurement range: 30 dB to 130 dB with 100 dB linearity range and 1. 5 dB accuracy (ref 94 dB @ 1 kHz) Datalogger: Records up to 32,000 readings to internal memory with real time calendar clock Standards compliance: Meets IEC 61672 1, 60651 60804 Type 2, and ANSI S1. 4 Type 2 specifications

(Band 4) 910 MHz ≤ f < 1820 MHz 0

5kV Output Voltage Waveform Sine wave Output Voltage Frequency 50Hz / 60Hz selectable Voltage Regulation ±(1% of reading + 5V) [full load → no load] Voltmeter Accuracy ±(1% of reading + 5V) Current Measurement Range 0

reference level = -60 dBm

Plug Body is Brass

BNC (Female) To Double Stacking Banana Plugs

DC Voltage: 100

1mV to 1000VDC 0

Uncertainty at Reference Conditions: ±2

Frequency: 1 μHz to 300 kHz

the 1685B draws 3

DC withstanding output from 0

and one out-of-spec bin)

Exchange/Return Notes