Bruel & Kjaer 4428 Noise Dose Meter (Plus charge for Preamp and Mic)
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Description
The Bruel & Kjaer 4428 Noise Dose Meter is an advanced and dependable tool designed for measuring noise exposure in various settings. This device is equipped with a preamp and microphone, which enhances its accuracy and sensitivity, resulting in precise measurements. By amplifying sound signals, the preamp and microphone combination allows the meter to accurately capture even the faintest noises. Additionally, this meter is user-friendly and built to last, making it an ideal choice for professionals in industries like construction, entertainment, and manufacturing. These industries require noise monitoring to ensure worker safety and compliance with regulations.
Specifications
– Model: Bruel & Kjaer 4428 Noise Dose Meter
– Preamp: Provides additional amplification for accurate noise measurements
– Microphone: Captures and measures sound levels in the environment
– Measurement Range: Typically 70 dB to 140 dB with the preamp and microphone
– Weighting: A, C, or Z frequency weighting options for different noise characteristics
– Time Weighting: Fast, Slow, and Impulse time weighting options for different noise dynamics
– Measurement Modes: Includes Lp (overall sound level), Leq (equivalent continuous sound level), Lmax (maximum sound level), and LN (percentile levels)
– Display: LCD screen for easy reading of measurements and settings
– Data Logging: Ability to store and retrieve measurements for further analysis
– Battery Life: Long battery life for extended use in the field
– Size: Compact and portable design for easy transportation
Laboratory Calibration
Micro Precision operates 36 laboratories globally providing reliable localized support
- Certified metrologists staffing laboratories in North America, Central America, South America, Europe, Asia, and the Middle East
- Comprehensive scopes of accreditation to meet a broad range of customer needs
- Expedited calibration services available
- Pickup and delivery services available
- Environmentally controlled facilities to ensure high quality and accurate calibrations and measurements.
Laboratory Calibration
Micro Precision operates 36 laboratories globally providing reliable localized support
- Certified metrologists staffing laboratories in North America, Central America, South America, Europe, Asia, and the Middle East
- Comprehensive scopes of accreditation to meet a broad range of customer needs
- Expedited calibration services available
- Pickup and delivery services available
- Environmentally controlled facilities to ensure high quality and accurate calibrations and measurements.
Quality Certified Test Equipment Repair Services
When a piece of equipment fails you have the option to repair or replace that item. Oftentimes repair is an economical and efficient solution. Micro Precision’s repair offering provides advantages to our customers:
- Cost effective; often less than OEM
- Efficient; often much better turn-time than the OEM
- Flexibility; willingness to work with customers to meet their needs
- Warranted repairs
- Ability to service many obsolete instruments
Quality Certified Test Equipment Repair Services
When a piece of equipment fails you have the option to repair or replace that item. Oftentimes repair is an economical and efficient solution. Micro Precision’s repair offering provides advantages to our customers:
- Cost effective; often less than OEM
- Efficient; often much better turn-time than the OEM
- Flexibility; willingness to work with customers to meet their needs
- Warranted repairs
- Ability to service many obsolete instruments
Cost Effective Test Equipment Options
From the leasing of specialized electronic equipment for a specific task, to the purchase of physical and dimensional tools, we offer leasing services as well as used test equipment sales. We also locate hard-to-find electronics, and provide flexible options to meet ever-changing equipment needs.
Cost Effective Test Equipment Options
From the leasing of specialized electronic equipment for a specific task, to the purchase of physical and dimensional tools, we offer leasing services as well as used test equipment sales. We also locate hard-to-find electronics, and provide flexible options to meet ever-changing equipment needs.
Our Capabilities
Micro Precision can perform instrument calibration services on equipment from variety of applications for specific industries and lines of business. If you have a calibration need that is not listed in this area, please contact us.
Electrical
Micro Precision accredited electrical calibration lab services with multimeter, multifunction calibrator, oscilloscope, and power supply capabilities.
Optical
Micro Precision accredited optical, light, and fiber optic calibration lab services.
Thermodynamics & Chemical
Micro Precision accredited thermodynamic & chemical calibration lab services with temperature, humidity, life science, and pharma capabilities.
RF - Microwave
Micro Precision accredited RF & microwave calibration lab services.
Mechanical & Dimensional
Micro Precision accredited mechanical and dimensional calibration lab services with pressure, torque, force, flow, velocity, and aircraft jack load capabilities.
Laboratory Standards
Calibration laboratory standards are critical for your organization’s most accurate measurements.
Semiconductor Calibration
Micro Precision utilizes state-of-the-art technology to analyze semiconductor wafer thickness and step height.


