Measuring noise levels and employees’ noise exposure is an important part of a workplace noise control and hearing conservation program. A wide range of professional instruments can be used to measure noise levels. We carry a complete line of sound measuring devices: noise indicators, sound examiners, sound level meters, outdoor measuring systems. A noise indicator shows if the noise level is above the non-harmful 85 dB and if it is necessary to start using hearing protection such as ear plugs or ear muffs. A sound meter is a more robust device, which consists of a microphone, electronic circuits, and a display. It measures, records and processes data. To avoid noise reading alterations in windy areas, a windscreen is used to cover the microphone.
3M™ NI-100 is a durable noise-indicating device that alerts users when noise levels exceed 85dB. It is one of the most affordable noise detection options available for monitoring noise levels. Red flashing LED light indicates noise levels that are above 85 dB, green flashing LED shows noise levels below 85 dB. NI-100 is easy-to–use: clips to a shirt or a jacket, and turns on with a simple press-and-hold of a button. The unit will auto-power off after 10 hours.
3M™ Noise Indicator NI-100 is the ideal tool for Health & Safety Managers working in varied noise environments: it helps training workers within a Hearing Conservation Program to spot hazardous noise levels, to ensure that they know when to put on the hearing protection, or as a mapping tool to determine where noise studies are necessary.
According to the international ANSI and IEC standards, the type/class of a sound level meter is defined by its accuracy: type 1 is more accurate than type 2.
Differences Between Models:
1. Type of Microphone
2. Intrinsic Safety(IS)
Intrinsic safety is covered under OSHA Regulations (Standards – 29 CFR), Hazardous (classified) locations 1910.307 and 1926.407.
3M™ Sound Examiner™ SE-401-IS
3M Sound Examiner SE-401-IS is a high-quality user-friendly instrument engineered to be used in potentially hazardous work environments: pharmaceutical, automotive, transportation, metal production, military maintenance, repair and operation, manufacturing, mining, oil and gas industries.
The benefit of 3M Sound Examiner SE-401-IS is that it offers intuitive interface which does not require training and is certified intrinsically safe. The averaging functionality allows for easy measurement in various environments. Other important advantages of using this meter include a large backlit display and remote printing capabilities.
3M™ Sound Examiner™ SE-402-IS
The 3M Sound Examiner Sound Level Meter SE-402-IS is an intrinsically safe meter engineered to accurately measure noise levels in highly variable environments. This easy-to-use instrument calculates the average sound pressure level (LEQ/LAVG) over the run time; data log the maximum, minimum and peak values, and enables data to be downloaded for further analysis.
Manual: 3M SE-402-IS User Manual
3M™ Sound Examiner™ SE-402-R
The 3M Sound Examiner SE-402-R is a versatile compact meter with accurate sound measurement and intuitive analysis capabilities. The tool computes the average sound pressure level (LEQ/LAVG) over the run time, helping to assess occupational and environmental noise levels. The aerodynamic shape, removable preamp, onboard data logging, and SoundPatrol portable digital printing functionalities ensure the improvement in operating efficiency and reporting in acoustics, heat stress, and environment monitoring.
Brochure: The 3M SoundPro System
The 3M™ SoundPro™ DL Series Sound Level Meter SP-DL-1-1/3
The 3M SoundPro DL Series Sound Level Meter SP-DL-1-1/3 provides Class 1 sound level monitoring and comprehensive data analysis. With real-time frequency analysis displayed on its large screen display and data storing capabilities, it’s easy to use to post-process and evaluate workplace noise levels. Applications include occupational noise evaluations, environmental noise assessments, noise ordinance enforcement and legal metrology, general sound and frequency analysis, vehicle noise evaluations.
Manual: SoundPro User Manual
The 3M™ SoundPro™ DL Series Sound Level Meter SP-DL-2-1/3
The 3M SoundPro DL Series Sound Level Meter SP-DL-2-1/3 provides Class 2 sound level monitoring and comprehensive data analysis. With real-time frequency analysis displayed on its large screen display and data storing capabilities, it’s easy to use to post-process and evaluate workplace noise levels.
The 3M™ SoundPro™ Outdoor Measuring System (OMS)
The SoundPro Outdoor Measuring System (OMS) helps protect the instrument from exposure to wind, rain, snow, chemicals, particulates, animals, vandalism and theft. It is also used for extended battery life with up to one week of continuous monitoring. Outdoor measuring system (OMS) allows for unattended sound level meter monitoring. Design allows for the case to be padlocked. It does not include the SoundPro series meter. The outdoor measurement system should be stored in a cool dry location with the lid closed whenever possible. The OMS is only for the Sound Pro type 1 or type 2, due to how it plugs in. It won’t work on the SE-402 or SE-401 but might work on the SE-402-R.
Outdoor System Includes: