Smart Wireless Acoustic Diagnostics & Noise Auditing: MESTEK SL720B / SL720C Digital Sound Level Meter Series in Malaysia

In modern industrial facilities, occupational safety compliance (DOSH / JKKP regulations), commercial HVAC balancing, environmental noise surveys, and acoustic engineering across Malaysia, continuous wireless data logging and real-time noise recording are essential. MTM Precision is proud to present the MESTEK SL720B and SL720C Digital Sound Level Meter Series—an advanced line of compact decibel meters engineered for high-precision sound pressure level (SPL) auditing with integrated smart Bluetooth connectivity.

Certified under international CE and RoHS compliance standards, the MESTEK SL720 series features a wide 30 dB to 130 dB measurement range, dual A & C frequency weightings, dual Fast & Slow time response dynamics, high-definition multi-color reverse display LCD screens, and mobile app synchronization via Bluetooth on the flagship SL720B model.

🌟 Key Features & Advanced Acoustic Capabilities

Smart Bluetooth Wireless Connectivity (SL720B Flagship): The SL720B features built-in Bluetooth data transmission, allowing technicians to pair the decibel meter with smartphones or tablets via a dedicated mobile app. Monitor live decibel charts remotely, record continuous sound logs, and generate PDF export reports without sitting in hazardous noise zones.
Dual Frequency Weighting Filters (A & C Weighting):
- A-Weighting (dBA): Replicates human ear sensitivity ($31.5\text{Hz}$ to $8\text{kHz}$), tailored for occupational workplace noise audits, OSHA/DOSH regulations, and community environmental surveys.
- C-Weighting (dBC): Delivers a flat acoustic frequency response for analyzing low-frequency rumble, engine exhaust noise, heavy machinery vibration, and industrial plant sound emissions.
Dual Time Weighting Dynamics (FAST / SLOW Response):
- FAST Mode (125ms): High-speed 125ms sampling rate captures sudden acoustic spikes, impact sounds, and rapidly fluctuating noise.
- SLOW Mode (1000ms): Averages varying noise levels over a 1-second integration window to evaluate consistent background sound levels.
Multi-Color Reverse Display LCD Screen: High-contrast color display screen features an intuitive analog bar graph indicator, $0.1\text{dB}$ numerical resolution, MAX hold markers, and clear battery level icons for effortless viewing in bright daylight or dark plant rooms.
MAX Hold & Data Hold Controls: Dedicated MAX screen lock records absolute peak noise spikes during an audit pass, while Data Hold freezes live decibel readings for reporting.
Portable, Lightweight Ergonomic Housing: Weighing only 106 grams (195 mm x 42 mm x 24 mm), both models feature non-slip side grips, a protective microphone foam windscreen, and an efficient 3x AAA battery power supply.

📊 Technical Specifications & Model Comparison Matrix

Specification Metric	MESTEK SL720B	MESTEK SL720C
Wireless Connectivity	Built-in Bluetooth App Sync	Standard Non-Bluetooth
Sound Pressure Measuring Scope	30 dB to 130 dB	30 dB to 130 dB
Measurement Accuracy	± 2.0 dB	± 2.0 dB
Frequency Response Range	31.5 Hz to 8 kHz	31.5 Hz to 8 kHz
Frequency Weighting	A & C Weighting (Selectable dBA / dBC)	A & C Weighting (Selectable dBA / dBC)
Dynamic Response Time (F/S)	FAST: 125 ms (Default) / SLOW: 1000 ms	FAST: 125 ms (Default) / SLOW: 1000 ms
Measurement Resolution	0.1 dB	0.1 dB
Display Type	HD Multi-Color Reverse LCD Screen	HD Multi-Color Reverse LCD Screen
Data Hold & MAX Hold	Yes (Dedicated Screen Lock Buttons)	Yes (Dedicated Screen Lock Buttons)
Power Supply	3 x 1.5V AAA Alkaline Batteries	3 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
Net Unit Weight	Approximately 106 g (Excl. batteries)	Approximately 106 g (Excl. batteries)
Safety Certifications	CE Certified, RoHS Compliant	CE Certified, RoHS Compliant
Standard Package	Sound Level Meter Unit, Windscreen Sponge, AAA Batteries, User Manual, Color Box	Sound Level Meter Unit, Windscreen Sponge, AAA Batteries, User Manual, Color Box

🏭 Primary Application Fields in Malaysia

Smart DOSH / JKKP Occupational Health Audits: Using the Bluetooth-enabled SL720B to log long-term noise exposure levels across manufacturing plants, wood mills, and assembly lines straight to mobile devices for compliance reporting.
Commercial HVAC & Environmental Noise Surveys: Monitoring sound levels near cooling towers, AHU rooms, generator sets, and residential property boundaries.
Automotive & Acoustic Research: Recording real-time decibel profiles during vehicle road tests, exhaust acoustic testing, and cabin soundproofing audits via the Bluetooth app.
Entertainment Venue & Auditoria Audits: Monitoring sound pressure levels continuously in cinemas, concert halls, event spaces, and public auditoriums.

📞 Contact & Purchasing Information in Malaysia

For product inquiries, bulk procurement, technical calibration support, or official quotations regarding MESTEK acoustic meters and diagnostic 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