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Product Specifications:
| Item | Sound Level Meter |
| Accuracy | ±1.5 dB |
| Batteries Included | Yes |
| Battery Run Time | 2 hrs. |
| Battery Size | C |
| Battery Type | (4) C-Cell |
| Battery Voltage | 1.5V |
| Built-in | Microphone, Real Time Clock |
| Calibration Certificate | Not Included |
| Calibration Certificate Type | Not Certified |
| Class | Class Type 2 |
| Db Range | 30 dBA to 130 dBA |
| Digital Display Screen Type | LCD With Backlight |
| Display Size | 3.5" |
| Display Type | LCD |
| Features | Extech’S Type 2 Integrating Sound Level Meter With Octave And 1/3 Octave Band Real Time Is Displayed On A Large 3.5" 320X240 Tft Color Backlit Lcd |
| Frequency | 25 Hz Hz to 10 kHz |
| Frequency Weighting | A, C, Z |
| Includes | 120V AC Adapter, Batteries, Case, Mini Screwdriver, Usb Cable, Wind Screen, Windows Software |
| Instrument Type | Sound Level Meters, Octave Band Analyzers |
| Interface | SD Card, USB |
| Manufacturer Warranty Length | 2 yrs. |
| Max. Frequency | 10 kHz |
| Max. Sound Level Measurement | 130 dB |
| Maximum Frequency Measurement | 10 kHz |
| Maximum Operating Temperature | 122°F |
| Maximum Sound Level Measurement | 130 dB |
| Microphone Size | 1/2" |
| Microphone Type | Electret Condenser |
| Min. Frequency | 25 Hz |
| Min. Sound Level Measurement | 20 dB |
| Minimum Frequency Measurement | 25 Hz |
| Minimum Operating Temperature | 14°F |
| Minimum Sound Level Measurement | 20 dB |
| Number Of Batteries Required | 4 |
| Number Of Records Stored | 30000000 |
| Operating Temp. | +14°F to +122°F |
| Output Jack | Analog, USB |
| Output Type | AC Analog, DC Analog |
| Records Up To | 1, 024 Data Points |
| Resolution | 1 dBA |
| Response Time | 10 ms, 1000 ms, 125 ms, 35 ms |
| Sound Level Measurement | 20 dB to 130 dB |
| Sound Level Measurement Accuracy | - 1 dB to +1 dB |
| Sound Level Measurement Resolution | 1 dBA |
| Type | Type 2 |
Shipping Info:
| Ship weight (kg) | 2.88 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 2.54 |
| Ship width (cm) | 2.54 |
| Country of Origin | TW |
Product Variants
| Product | Model | Class | Min. Frequency | Frequency Weighting | Number Of Records Stored | Sound Level Measurement Accuracy | Min. Sound Level Measurement | Calibration Certificate Type | Max. Frequency | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
407750-NIST | Class Type 2 | 30 Hz | A, C | 100000 | -1.5 dB to +1.5 dB | 30 dB | NIST | - | €759.80 | |
![]() |
407750 | Class Type 2 | 30 Hz | A, C | 100000 | -1.5 dB to +1.5 dB | 30 dB | - | - | €501.93 | |
![]() |
407732 | Class Type 2 | 30 Hz | A, C | 2 | -1.5 dB to +1.5 dB | - | - | - | €397.58 | |
![]() |
SL130W-NIST | Type 2 | 30 Hz | A, C | 2 | -1.5 dBA to +1.5 dBA | 30 dBA | NIST | 10 kHz | €718.78 | |
![]() |
SL250W | Type 3, Type 2 | 30 Hz | A | 2 | -1.5 dB to +1.5 dB | 30 dB | - | - | €194.73 | |
![]() |
SL510 | Class Type 2 | 30 Hz | A, C | 2 | - 1 dB to +1 dB | - | Not Certified | 8 kHz | €267.00 |
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Contact us
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EXTECH 407790A Sound Level Meter, 30 To 130 Db, 25 Hz To 10 Khz, A/C/Flat, Usb, Lcd
€6,558.88 /unit




