Extech 407790A: Real Time Octave Band Analyzer

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Wide measurement in 5 ranges: 20 to 90dB, 20 to 100dB, 20 to 110dB, and 30 to 120dB, 40 to 130dB
3.5″ (320×240) TFT color LCD with backlight feature displays Leq, L_E, Lmax, Lmin, Lp, L₀₅, L₁₀, L₅₀, L₉₀, L₉₅
Stores readings on microSD card
Precise linearity over wide range (100dB)
Transferred data to a PC to be analyzed using software and cable provided

Type 2 integrating sound level meter with Octave and 1/3 Octave Band real time display

Extech’s Type 2 Integrating Sound Level Meter with Octave and 1/3 Octave Band Real Time is displayed on a large 3.5″ 320×240 TFT color backlit LCD.

Wide measurement in 5 ranges: 20 to 90dB, 20 to 100dB, 20 to 110dB, and 30 to 120dB, 40 to 130dB
3.5″ (320×240) TFT color LCD with backlight feature displays Leq, L_E, Lmax, Lmin, Lp, L₀₅, L₁₀, L₅₀, L₉₀, L₉₅
Stores readings on microSD card
Precise linearity over wide range (100dB)
Transferred data to a PC to be analyzed using software and cable provided
A, C and Z weighting with Fast or Slow response
25Hz to 10kHz frequency response
Meets ANSI and IEC Type 2 standards
Internal self test when powered ON
Detachable 0.52″ (13.2mm) diameter condenser microphone and Tripod mount provided on rear
Analog AC/DC recorder output
Real time clock with Year, Month, Day, Hour, Minute and Second display
Optional microphone extension cable for measurements in enclosures and other remote locations (407764-EXT)
Complete with Windows® compatible software, USB cable, 4 x C batteries, microphone wind screen, mini screwdriver, 120V AC adaptor, and case

Specifications	Range
Applicable standards	ANSI S1.4 Type 2, EN IEC 60651, EN IEC 60804, and EN IEC 1260-1995
Accuracy	±1.5dB (ref 94dB @ 1kHz)
Measurement functions	Lp, Leq, L_E, Lmax, Lmin, L₀₅, L₁₀, L₅₀, L₉₀, L₉₅,
Frequency range	25Hz ~ 10kHz
Frequency Weighting	A, C, and Z
Time Weighting	Fast, Slow, 10ms (τ), I
Display	3.5″ (89mm) 320×240 TFT color backlit LCD; Displays 1/1, 1/3, and 1/1 & 1/3
1/1- 1/3 Analyzer level range	5 ranges in 10db steps: 20 to 90dB, 20 to 100dB, 20 to 110dB, 30 to 120dB, 40 to 130dB
1/1 Octave and 1/3 Octave	1/1 Octave band center frequencies: (9 bands);
1/1 Octave and 1/3 Octave	1/3 Octave band center frequencies: (27 bands)
Signal output	AC output: 1 Vrms (at full scale); DC output: 3.0V, 25mV/dB
Memory	microSD card (included)
Measurement Time	1s to 23h 59m 59s
Power	Four type C size 1.5V batteries, External DC power: 6V, 1A
Dimensions/Weight	13.6 x 3.9 x 2.4″ (345 x 100 x 60mm)/ 33.5oz (950g)