Mini Sound Level Meter 30-130 Db ( HTC SL-13A )

Description

HTC SL-13A Mini Digital Sound Level Meter — Precision Monitoring in a Pocket-Sized Design

The HTC SL-13A Mini Digital Sound Level Meter brings professional-grade audio measurement into a sleek, compact form factor. Designed for both professionals and hobbyists—from factory safety officers and audiophiles to engineers and educators—this sound level meter combines high accuracy with enhanced usability, making precise noise monitoring accessible anywhere.

Precision Sound Monitoring with Expert Accuracy

At its core, the SL-13A measures sound pressure levels across a wide and useful range of 30 to 130 dB(A), covering ambient noise to loud industrial environments. It delivers exceptional resolution down to 0.1 dB, enabling users to detect even subtle changes in sound levels. Its performance accuracy is ±1.5 dB at 94 dB and 1 kHz, with a broader ±5 dB tolerance at 94 dB and 8 kHz. These specifications meet professional requirements for reliable, repeatable measurements.

Responsive & Adaptable Measurement Modes

The SL-13A offers selectable FAST (125 ms) and SLOW (1 s) response times to adapt to different noise environments. The FAST mode captures quick acoustic spikes—ideal for measuring machinery hums or sudden ambient noises—while the SLOW setting provides averaged readings for more stable noise levels.

Advanced Audio Capture Across a Wide Frequency Range

This sound meter accurately captures noise across a broad 30 Hz to 8 kHz frequency spectrum, making it effective for evaluating sounds from low-frequency machinery to human speech and environmental disturbances. Its ½-inch electret condenser microphone ensures sensitivity and precision even in challenging acoustic conditions.

All-in-One Environmental Monitoring

Beyond sound measurement, the SL-13A incorporates integrated temperature and humidity sensors, extending its utility for environmental assessments. It records ambient temperatures from –20 °C to 60 °C (–4 °F to 140 °F) and humidity levels from 0.0% to 99.9% RH. Temperature is measured with 0.1 °C resolution and humidity with 0.1% RH precision. Accuracy details include ±1.0 °C (0–45 °C) and ±1.5 °C beyond, as well as ±5% RH (20–80% RH) and ±6% outside that range.

User-Centric Features for Enhanced Convenience

The HTC SL-13A is rich in usability-oriented features:

• Data Hold captures and freezes the current reading, helping with recording and reporting.

• Max/Min Tracking records peak and lowest measurements during a session—ideal for identifying excessive noise events.
• Backlit LCD Display ensures visibility even in dim conditions, such as early mornings or industrial interiors.
• Auto Power-Off conserves battery life by shutting the device down after 10 minutes of inactivity (cancelable via a special startup sequence).
• Overload Indicators display “OL” or “UN” when readings exceed or fall below the measurement range, helping prevent misleading data.

Compact & Durable Design for Field Use

Measuring approximately 142 x 58 x 28 mm and powered by three user-friendly AAA batteries, the SL-13A is both lightweight and ready for quick deployment. Each unit includes a soft carrying case, a user manual, and the batteries needed to get started immediately, offering a complete field-ready package.

Ideal Applications and Benefits

• Industrial Noise Assessment: Ideal for assessing equipment noise levels in manufacturing plants, ensuring compliance and worker safety.

• Environmental Noise Monitoring: Measure urban ambient noise, traffic disturbance, or residential sound disturbances efficiently.

• Product Quality Control: Ensure quiet operation in appliances and devices, verifying performance against noise benchmarks.

• Health Monitoring: Track environmental humidity and heat to maintain safe living or workplace conditions.

• HVAC System Testing: Combine acoustics with temperature and humidity data to evaluate heating, ventilation, and air conditioning efficiency.

• Educational and Research Use: A practical tool in science labs or classrooms to demonstrate real-world sound analysis.

Why the HTC SL-13A Stands Out

The SL-13A elevates expectations for mini sound level meters by integrating comprehensive acoustic, thermal, and humidity monitoring in a single device. Its compact yet feature-rich design—combined with accurate measurements, durability, and smart utility—makes it a superior choice for professionals seeking reliable environmental assessments on the move. With strong accuracy, versatility, and ease of use, it delivers value far beyond its size.