Smart Sensor Environmental Measurement & Sound Level Meter Series Catalog in Malaysia | Authorized Solutions by MTM Precision

Elevating Ambient Humidity/Temperature Monitoring, Occupational Noise Auditing, Workplace Decibel Compliance,Cleanroom Climate Control, and Wall-Mounted Noise Surveillance Across Malaysian Enterprise Facilities.

Professional-Grade Environmental & Acoustic Diagnostics for Modern Industry

In occupational health and safety (OHS) auditing, environmental noise monitoring, cleanroom climate control, HVAC commissioning, pharmaceutical warehousing, and industrial plant management across Malaysian enterprises, precision environmental and acoustic testing instruments are vital. Safety officers, industrial hygienists, facility managers, and acoustic engineers require reliable digital diagnostic equipment capable of monitoring ambient relative humidity,internal/external temperatures, dew points, and sound pressure levels (SPL) ranging from quiet workspaces to heavy industrial machinery noise.

Industry-leading instrumentation developer Smart Sensor engineered the specialized Environmental Measurement & Sound Level Meter Series to set the benchmark for occupational safety and acoustic testing. Featuring professional desktop and handheld humidity/temperature monitors (such as the AS807, AR867, and ST9617 series), high-precision handheld decibel meters (AS804, ST9604, AR844 series), and large-format wall-mounted noise surveillance displays (AR884A), this comprehensive lineup delivers laboratory-grade accuracy in rugged, field-ready formats. Distributed across Malaysia by MTM Precision Sdn. Bhd. in Puchong, Selangor, these genuine factory-backed instruments supply local industrial plants, commercial buildings, and safety contractors with essential compliance tools.

Flagship Spotlight: Smart Sensor Environmental & Sound Level Lineup

This product showcase covers ambient humidity/temperature loggers, dual-probe meters, handheld sound level meters,and wall-mounted acoustic displays:

1. Ambient Humidity & Temperature Meters / Loggers

Smart Sensor AS807, AR807 & AS808 (Desktop / Wall Thermo-Hygrometers): Compact digital climate monitors featuring clear LCD/color screens, measuring temperature ( $-20^\circ\text\text{--}70^\circ\text$ ) and relative humidity ( $10\%\text{--}95\%\text$ ) with high accuracy, max/min value memory, and desktop stand/wall-mount capabilities.
Smart Sensor AR867 (Thermo-Hygrometer with External Probe): Specialized climate meter featuring an extended wired external probe for monitoring remote environments, refrigerators, or ducts, measuring indoor ( $-10^\circ\text\text{--}50^\circ\text$ ) and outdoor ( $-50^\circ\text\text{--}70^\circ\text$ ) temperatures alongside $20\%\text{--}99\%\text$ humidity, equipped with frost spot alarms.
Smart Sensor ST9617 & AR847+ (Advanced Psychrometric & Contact Testers): High-end environmental meters featuring wide temperature ranges, digital displays, and optional K-type thermocouple inputs for simultaneous climatic and contact thermal measurements.

2. Handheld Occupational Sound Level (Decibel) Meters

Smart Sensor ST9604, AS804 & AS824 (Handheld Sound Level Meters): Professional acoustic meters utilizing $1/2\text{-inch}$ electret condenser microphones, covering $30\text{--}130\text{dBA}$ or $35\text{--}130\text{dBA}$ ,featuring A and C frequency weighting, fast/slow response times, max/hold functions, and high accuracy ( $\pm 1.5\text{dB}$ ).
Smart Sensor AS834+, AS844+ & AR844 (Advanced Decibel Meters with Data Logging): High-performance sound level meters supporting extensive internal data storage (up to 4700 or 15000 groups), USB data transfer, and external DC power options for extended environmental noise surveys.
Smart Sensor AR814, AR824 & AS854 (Precision Acoustic Analyzers): Specialized decibel meters featuring pre-polarized test condenser microphones and massive data storage capacity (up to 10000 groups) for rigorous acoustic testing and DOSH compliance audits.

3. Wall-Mounted Noise Surveillance Display

Smart Sensor AR884A (Wall Mount Sound Level Meter): Large-format digital noise monitoring display utilizing a $6\text{mm}$ condenser microphone, covering $30.0\text{--}130.0\text{dBA}$ / $35.0\text{--}130.0\text{dBC}$ with $\pm 1.5\text{dB}$ accuracy, frequency weighting (A/C), adjustable alarm values, and USB DC 5V power supply, ideal for continuous factory floor and public safety noise monitoring.

Technical Specifications & Parameter Matrix

Smart Sensor Environmental & Sound Series Detailed Specifications

Model / Instrument	Core Measuring Function	Key Ranges & Technical Specifications	Power Supply & Data Features
AS807 / AR807 / AS808	Ambient Temp & Humidity	Temp: $-20\text{--}70^\circ\text$ ; Humidity: $10\%\text{--}95\%\text$	$1 \times 1.5\text$ AAA Battery; Max/Min memory; Desktop/Wall mount
AR867 (External Probe)	Indoor / Outdoor Temp & Humidity	Indoor: $-10\text{--}50^\circ\text$ ; Outdoor: $-50\text{--}70^\circ\text$ ; RH: $20\%\text{--}99\%$	$1 \times 1.5\text$ AAA Battery; Wired external probe; Frost alarm
ST9617 (Thermo-Hygrometer)	Temperature, Humidity & Dew Point	Temp: $-10\text{--}50^\circ\text$ ; RH: $0\text{--}95\%\text$	$3 \times 1.5\text$ AAA Batteries; Advanced digital display
AS804 / ST9604(Sound Meter)	Sound Pressure Level (SPL)	Range: $30\text{--}130\text{dBA}$ (Accuracy: $\pm 1.5\text{dB}$ )	$1/2\text{-inch}$ condenser microphone; A/C frequency weighting
AS834+ / AS844+(Data Logging)	Acoustic SPL & Noise Surveying	Range: $30\text{--}130\text{dB}$ ; Frequency: $31.5\text{Hz}\text{--}8\text{kHz}$	Up to 15000 storage groups; USB power & data export
AR844 (Sound Level Meter)	Professional Noise Measurement	Range: $30\text{--}130\text{dBA/C}$ ; 4700 storage groups	$4 \times 1.5\text$ AA Batteries; Max/Min hold functions
AR884A (Wall-Mount Display)	Continuous Wall Noise Monitoring	Range: $30.0\text{--}130.0\text{dBA}$ / $35.0\text{--}130.0\text{dBC}$	USB DC 5V Power; Large LED numeric display; Adjustable alarm

Detailed Technical Feature Breakdown

Dual Indoor/Outdoor Climate Monitoring (AR867)

Equipped with a weather-resistant wired external sensor probe, the AR867 allows facilities to monitor indoor office climates while simultaneously tracking outdoor or refrigerated chamber temperatures, complete with an automated frost spot alarm.
A and C Frequency Weighting in Sound Meters

Handheld decibel meters (AS804, AS844+, AS854) feature both A-weighting (simulating human ear response for general occupational noise) and C-weighting (measuring high-decibel peak industrial machinery sounds) in compliance with international acoustic standards.
Massive Acoustic Data Logging (Up to 15,000 Groups)

Advanced sound level meters store up to 15,000 data points with USB export capability, enabling safety engineers to conduct 24-hour workplace noise exposure assessments required by safety regulations.
Continuous Real-Time Wall Surveillance (AR884A)

The wall-mounted AR884A features a brilliant, oversized digital LED display and customizable alarm thresholds,making it the premier choice for real-time noise compliance monitoring in manufacturing plants, airports, and entertainment venues.

Key Industry Applications in Malaysia

Smart Sensor environmental and sound level meters supplied by MTM Precision serve vital industrial, commercial, and occupational safety sectors across Malaysia:

Occupational Health & Safety (OHS) Noise Auditing: Using handheld and wall-mounted decibel meters to measure workplace noise exposure in manufacturing factories, wood-working plants, and heavy industrial facilities to comply with Department of Occupational Safety and Health (DOSH) limits.
Pharmaceutical & Cleanroom Climate Control: Monitoring temperature and relative humidity in cleanrooms,laboratories, and pharmaceutical storage warehouses to maintain strict ISO environmental standards.
Cold Chain & Food Storage Monitoring: Deploying dual-probe thermo-hygrometers (AR867) to track storage temperatures in commercial refrigerators, cold rooms, and food distribution hubs.
Building Acoustics & Environmental Impact Assessments: Conducting community noise surveys and architectural acoustic evaluations in commercial towers and residential construction zones.

Why Choose MTM Precision Sdn. Bhd. as Your Partner in Malaysia?

Partnering with MTM Precision Sdn. Bhd. guarantees local access to authentic testing equipment and Smart Sensor environmental and acoustic instruments backed by complete technical support:

100% Guaranteed Authentic Smart Sensor Products: Direct distribution ensuring genuine instruments that strictly meet manufacturer performance and acoustic calibration specifications.
Local Stock & Rapid Delivery: Comprehensive local inventory in Puchong ensures fast fulfillment and minimal downtime for safety officers and facility management teams.
Puchong Showroom & Hands-on Evaluation: Visit our physical facility in Puchong, Selangor to inspect wall-mounted noise displays, test decibel meter microphone responsiveness, evaluate thermo-hygrometer display clarity,and consult with our engineering team.
Expert Technical Guidance: Knowledgeable sales engineers available to advise on acoustic weighting filters,noise logging setup, humidity calibration standards, and application-specific testing protocols.
ISO Quality Compliance Support: Supplying reliable, traceable diagnostic instruments to assist businesses in maintaining ISO quality management and local DOSH workplace safety standards.