Family Owned & Operated Since 1971• Bakersfield, CA
SKU: SL400-NIST
Sound level monitoring is essential to determine what protective measures are required for employees who are routinely exposed to loud noise. Perform noise surveys in compliance with OSHA, MSHA, DOD, ACGIH, and ISO standards with the Extech SL400 dosimeter. An SL400 noise accumulation survey can determine total sound exposure over an 8-hour period. This compact, lightweight dosimeter can also serve as a sound level meter, logging up to 999,999 readings with sampling times between 1 second and 24 hours. An optional 94 dB calibrator allows you to perform before-and-after calibration checks, per ANSI standards. The SL400 comes with PC software to control setup and retrieve stored events or analyze real-time measurements.
List price. Volume pricing available.
Sound level monitoring is essential to determine what protective measures are required for employees who are routinely exposed to loud noise. Perform noise surveys in compliance with OSHA, MSHA, DOD, ACGIH, and ISO standards with the Extech SL400 dosimeter. An SL400 noise accumulation survey can determine total sound exposure over an 8-hour period. This compact, lightweight dosimeter can also serve as a sound level meter, logging up to 999,999 readings with sampling times between 1 second and 24 hours. An optional 94 dB calibrator allows you to perform before-and-after calibration checks, per ANSI standards. The SL400 comes with PC software to control setup and retrieve stored events or analyze real-time measurements.
The Extech SL400-NIST Noise Dosimeter w/NIST # SL400-NIST is manufactured by Extech. Valley Instrument Service is an authorized Extech dealer offering full sales support, NIST-traceable calibration, and expert technical assistance.
Our team can help with product selection, specs, pricing, and application support.
Contact Us or Call (661) 327-8681| NIST Calibration | Yes |
| Criterion | 30 to 140dB in 0.1dB steps |
| Exchange Rate | 3, 4, 5 or 6 dB |
| Frequency Bandwidth | 20Hz to 8kHz |
| Memory | Dose: 10,000 points/SLM: 999,999 points |
| Microphone | Condenser 32" (81.3cm) |
| Response Time | Fast, Slow, Impulse |
| Sound Range (dB) | 30 to 90 dB, 50 to 110dB; C, Z Peak: 70 to 140dB / C and Z Peak: 90 to 143dB |
| Sound Range (dB) Basic Accuracy | ±1.4dB@94dB 1kHz |
| Threshold | 30 to 140dB in 0.1dB steps |
| Weighting | A, C, Z |
| Certifications | SL400-NIST_S: CE, NIST / SL400_S: CE |
| Dimensions | 4.2 × 2.6 × 1.3" (107 × 65 × 33mm) |
| Power | 1 × 9V battery |
| Warranty | 2 years |
| Weight | 7oz (198g) |
This product is part of a family with 2 models. Select a model below to view details.
| Model | Price | |
|---|---|---|
SL400 | Request Quote | View Details → |
SL400-NISTCurrent | Request Quote | Viewing |
Adaptor, USB, for 407001
The 407730 sound level meter measures from 40 to 130dB with an accuracy of 2dB. The digital display offers a 0.1dB resolution and features a fast responding analog bar graph. User can choose A or C weighting. Max Hold captures highest reading. Includes microphone wind screen and four AAA batteries.
This type 2 sound level meter meets ANSI and IEC 651 Type 2 standards. Ideal for noise surveys in the workplace, installing fire alarms and speaker systems and enforcing noise ordinances. Measures from 35 to 130dB in 2-ranges with accuracy of plus or minus 1.5dB. Data hold and Max hold functions. Backlit display allows use in dimly lit areas. Complete with microphone wind screen and 9V battery.
This 1kHz, 94dB professional sound calibrator for 0.5" or 1.0" microphones calibrates and verifies sound level meter operation. Battery test position with battery status LED indicates if battery is good. Durable die-cast aluminum housing generates a 1kHz sine wave at 94dB to an accuracy of 5% (frequency) and ±0.5dB (94dB). Meets IEC standard 60942 1997-11. Complete with two 9V batteries, carrying case, and screwdriver.