Professional Acoustic Compliance & Environmental Noise Auditing: MESTEK SL750 / SL750A / SL750B Digital Sound Level Meter Series in Malaysia

In manufacturing plants, occupational safety compliance (DOSH / JKKP regulations), commercial HVAC balancing, environmental noise monitoring, and entertainment venue acoustic checks across Malaysia, reliable decibel measurement is essential for safety, environmental compliance, and plant efficiency. MTM Precision is proud to introduce the MESTEK SL750, SL750A, and SL750B Digital Sound Level Meter Series—an advanced family of handheld acoustic meters engineered for high-precision sound pressure level (SPL) auditing across diverse industrial and commercial environments.

Certified under international electromagnetic compatibility standards (CE / EMC) with official RoHS compliance, the MESTEK SL750 series features an expansive 30 dB to 130 dB measurement scope, dual Fast & Slow response dynamics, high-contrast backlit LCD screens, MAX hold functions, and rugged pocket-sized ergonomics.

🌟 Model Architectural Comparison: SL750 vs. SL750A vs. SL750B

MESTEK SL750 (Standard Professional Model): Equipped with A-Frequency Weighting optimized for human ear response and OSHA/DOSH workplace safety standards ($31.5\text{Hz}$ to $8\text{kHz}$), featuring a 4-digit backlit LCD screen, Data hold, and MAX hold functions.
MESTEK SL750A (Dual-Weighting Standard Model): Upgraded with selectable A & C Frequency Weightings(dBA / dBC) for human-centric safety checks as well as low-frequency industrial machinery analysis, featuring a 4-digit backlit LCD screen.
MESTEK SL750B (Flagship Color Display Model): The premium configuration combining selectable A & C Frequency Weightings (dBA / dBC) with a vibrant, high-definition Full Color Display Screen, delivering superior visual clarity in both dark machinery rooms and bright outdoor sunlight.

🌟 Key Features & Advanced Acoustic Capabilities

Dual Frequency Weighting Filters (SL750A & SL750B):
- A-Weighting (dBA): Replicates human hearing sensitivity across $31.5\text{Hz}$ to $8\text{kHz}$, ideal for workplace safety inspections and general environmental noise control.
- C-Weighting (dBC): Provides a flat acoustic response to evaluate heavy industrial machinery vibration, diesel generator rumble, and low-frequency noise emissions.
Dual Time Weighting Dynamics (FAST / SLOW Response):
- FAST Mode (125ms): Captures instantaneous acoustic impact spikes, gunfire, or sudden peak noise bursts.
- SLOW Mode (1000ms): Averages varying noise fluctuations over a 1-second window to determine steady background noise levels.
High-Contrast Displays & 0.1dB Resolution: The SL750 and SL750A feature crisp 4-digit LCD screens, while the SL750B features a full-color screen complemented by a dynamic real-time analog bar graph and $0.1\text{dB}$resolution.
MAX Hold & Data Hold Functions: Dedicated control buttons lock the absolute highest decibel levels recorded during a continuous survey pass (MAX) while Data Hold freezes live readings for accurate reporting.
Compact, Lightweight & Portable: Weighing only 106 grams (195 mm x 42 mm x 24 mm), all models feature non-slip side grips, a protective microphone windscreen, and an efficient 2x AAA battery power configuration.

📊 Technical Specifications & Parameter Comparison Matrix

Technical Parameter	MESTEK SL750	MESTEK SL750A	MESTEK SL750B (Flagship)
Sound Pressure Measurement Scope	30 dB to 130 dB	30 dB to 130 dB	30 dB to 130 dB
Measurement Accuracy	± 2.0 dB	± 2.0 dB	± 2.0 dB
Frequency Response Range	31.5 Hz to 8 kHz	31.5 Hz to 8 kHz	31.5 Hz to 8 kHz
Dynamic Response Time (F/S)	FAST: 125 ms / SLOW: 1000 ms	FAST: 125 ms / SLOW: 1000 ms	FAST: 125 ms / SLOW: 1000 ms
Sound Pressure Frequency Weighting	A-Weighting (dBA)	A & C Weighting (dBA / dBC)	A & C Weighting (dBA / dBC)
Display Screen Type	4-Digit Backlit LCD	4-Digit Backlit LCD	Vibrant Full Color Display
Measurement Resolution	0.1 dB	0.1 dB	0.1 dB
Data Hold & MAX Function	Yes	Yes	Yes
Power Supply	2 x 1.5V AAA Alkaline Batteries	2 x 1.5V AAA Alkaline Batteries	2 x 1.5V AAA Alkaline Batteries
Physical Dimensions (L x W x H)	195 mm x 42 mm x 24 mm	195 mm x 42 mm x 24 mm	195 mm x 42 mm x 24 mm
Net Unit Weight	Approximately 106 g (Excl. batteries)	Approximately 106 g (Excl. batteries)	Approximately 106 g (Excl. batteries)
Safety Certifications	CE (EMC Compliance), RoHS	CE (EMC Compliance), RoHS	CE (EMC Compliance), RoHS
Standard Package	Sound Meter, Windscreen, Batteries, Manual, Box	Sound Meter, Windscreen, Batteries, Manual, Box	Sound Meter, Windscreen, Batteries, Manual, Box

🏭 Primary Application Fields in Malaysia

Occupational Safety & Health Auditing (DOSH / JKKP): Measuring employee noise exposure across manufacturing plants, textile mills, and assembly floors to ensure compliance with Malaysian safety limits.
Commercial HVAC & Mechanical Plant Maintenance: Auditing acoustic noise output from air handling units (AHUs), cooling towers, pumps, and ventilation systems.
Environmental & Construction Noise Monitoring: Assessing community noise levels near highway developments, construction sites, and railway corridors.
Automotive & Machinery Diagnostics: Evaluating cabin noise insulation, engine compartment sound levels, and mechanical vibration.

📞 Contact & Purchasing Information in Malaysia

For product inquiries, volume procurement, technical calibration support, or official quotations regarding MESTEKacoustic meters and test instruments in Malaysia, please contact MTM Precision:

Contact MTM Precision

MTM Precision Sdn. Bhd.

Showroom & Service Centre

No. 29-1 & 29-2, Jalan Bandar 18,

Pusat Bandar Puchong,

47160 Puchong, Selangor, Malaysia

Website: www.mtmpre.com.my

Email: mtmpre@yahoo.com

WhatsApp: +6016-660 7346

Office Tel: +603-80807172