Product Overview

The Lutron SL-4010 Digital Sound Level Meter is a professional handheld instrument designed for accurate measurement of environmental and industrial noise levels. Developed in accordance with IEC 61672 Class 2 standards, the SL-4010 delivers reliable sound level measurements using A-weighting frequency response and Fast time weighting, making it suitable for workplace noise monitoring, factory inspections, HVAC testing, environmental surveys, and occupational safety assessments.

Equipped with a precision ½-inch electric condenser microphone, the instrument provides stable and repeatable measurements across a wide sound pressure range of 35 to 130 dB. Its large LCD display, compact handheld design, and one-handed operation make it ideal for both field and indoor applications. The built-in calibration adjustment allows quick calibration using an optional acoustic calibrator, ensuring long-term measurement accuracy.

The SL-4010 is widely used by engineers, safety officers, environmental consultants, maintenance professionals, educational institutions, and research laboratories for evaluating workplace noise exposure, machine noise, building acoustics, and environmental sound levels.

Key Features

✔ Measures sound levels from 35 to 130 dB

✔ IEC 61672 Class 2 compliant

✔ A-weighting frequency response

✔ Fast time weighting

✔ Large 18 mm LCD display

✔ High accuracy electric condenser microphone

✔ Three selectable measuring ranges

✔ Data Hold function

✔ Low battery indication

✔ Over-range and under-range warning

✔ External calibration adjustment

✔ Lightweight handheld design

✔ Durable ABS plastic housing

✔ Simple one-hand operation

✔ Fast measurement response

✔ Long battery life

✔ High stability electronic circuitry

✔ Suitable for industrial and environmental noise measurements

Product Highlights

• Professional digital sound level meter
• Measures environmental and industrial noise
• IEC 61672 Class 2 compliance
• Precision condenser microphone
• Fast response measurements
• Easy-to-read LCD display
• Rugged handheld construction
• Lightweight and portable
• Ideal for workplace noise surveys
• Reliable long-term performance

Technical Specifications

General Specifications

Measurement Specifications

Sound Level Measurement

Microphone Specifications

• ½-inch Precision Electric Condenser Microphone
• High Sensitivity
• Excellent Long-Term Stability
• Low Noise Design
• Suitable for Environmental Sound Measurement
• Designed for Professional Acoustic Applications

Display Functions

• Large Digital LCD Display
• Data Hold Function
• Low Battery Indicator
• Over Range Warning
• Under Range Warning

Controls

• Power ON/OFF
• Range Selection
• Data Hold
• Calibration Adjustment

Measurement Standards

The SL-4010 complies with:

• IEC 61672 Class 2
• A-Weighting Frequency Network
• Fast Time Weighting Characteristic
• Precision Condenser Microphone Technology

Applications

Industrial

• Factory Noise Monitoring
• Machinery Inspection
• Production Lines
• Manufacturing Plants
• Maintenance Departments

Commercial

• Office Noise Evaluation
• Shopping Malls
• Commercial Buildings
• Hotels
• Public Spaces

Environmental

• Environmental Noise Surveys
• Community Noise Monitoring
• Traffic Noise Assessment
• Construction Site Monitoring
• Urban Sound Analysis

Educational

• Schools
• Colleges
• Universities
• Research Laboratories
• Acoustic Studies

HVAC

• Air Conditioning Systems
• Ventilation Equipment
• Fan Noise Testing
• Compressor Inspection

Safety

• Occupational Noise Monitoring
• Workplace Safety Audits
• Hearing Protection Assessment
• OSHA Compliance Surveys

Industries Served

• Manufacturing
• Automotive
• Pharmaceutical
• Chemical
• Construction
• HVAC
• Environmental Consulting
• Government Agencies
• Educational Institutions
• Research Organizations
• Facility Management
• Quality Assurance

Package Contents

• 1 × Lutron SL-4010 Digital Sound Level Meter
• 1 × 9V Battery
• 1 × Instruction Manual

(Optional accessories such as the SC-941/SC-942 Sound Calibrator, SB-01 Wind Shield, and CA-06 Carrying Case may be available separately depending on the supplier.)

Advantages

• Professional IEC Class 2 accuracy
• Wide 35–130 dB measuring range
• Lightweight and portable
• Easy one-hand operation
• Fast response measurement
• Reliable condenser microphone
• Durable construction
• Low power consumption
• Stable long-term performance
• Ideal for field and laboratory applications

Why Choose the Lutron SL-4010?

The Lutron SL-4010 offers an excellent balance of accuracy, durability, and affordability for professional sound level measurement. Designed to comply with IEC 61672 Class 2 requirements, it is suitable for industrial inspections, environmental monitoring, HVAC testing, occupational safety assessments, and educational applications. Its precision condenser microphone, A-weighting response, Fast time weighting, and ergonomic handheld design make it a dependable instrument for engineers, safety professionals, and maintenance personnel.

Ideal For

• Safety Officers
• Environmental Engineers
• Industrial Maintenance Engineers
• HVAC Technicians
• Factory Inspectors
• Laboratory Professionals
• Quality Control Engineers
• Acoustic Consultants
• Building Maintenance Teams
• Government Inspectors
• Educational Institutions
• Research Laboratories