ANENG GN101 Digital Sound Level Meter – 35-135dB, Class 2

The ANENG GN101 Digital Sound Level Meter is a compact handheld instrument designed for measuring environmental noise and sound pressure levels from 35 to 135dB.

Featuring A-weighted sound measurement, FAST/SLOW time weighting, MAX/MIN recording, Data Hold, ambient temperature measurement, and a color backlit display, the GN101 is suitable for workshops, factories, offices, schools, homes, equipment testing, and general environmental noise monitoring.

Its portable design and simple controls make it useful for technicians, engineers, students, maintenance personnel, and anyone who needs a quick indication of surrounding sound levels.

Technical Specifications

• Brand: ANENG
• Model: GN101
• Instrument Type: Digital Sound Level / Noise Meter
• Applied Standard: IEC 61672-1 Class 2, as specified
• Sound Level Range: 35–135dB
• Dynamic Range: 50dB
• Resolution: 0.1dB
• Sound Level Accuracy: ±2.0dB
• Frequency Range: 31.5Hz–8kHz
• Frequency Weighting: A-Weighted
• FAST Time Weighting: 125ms
• SLOW Time Weighting: 1s
• Microphone: 1/2-Inch Electret Condenser Microphone
• Data Update Rate: Approx. 300ms
• Temperature Range: -20°C to +70°C
• Temperature Range in Fahrenheit: -4°F to +158°F
• Temperature Resolution: 0.1°C / 0.1°F
• Temperature Accuracy: ±1.5°C / ±2.7°F
• MAX/MIN Function: Yes
• Data Hold: Yes
• Over-Range Indication: Yes
• Low-Battery Indication: Yes
• Display: Color LCD with Backlight
• Auto Power-Off: Approx. 15 Minutes
• Auto Power-Off Disable: Supported
• Battery Life: At Least 60 Hours, as specified
• Power Supply: 3 × 1.5V AAA Batteries
• Operating Conditions: -20°C to +60°C, 10–90% RH
• Storage Conditions: -20°C to +60°C, 10–75% RH
• Dimensions: Approx. 144 × 56 × 30.5mm
• Weight: Approx. 73g

35-135dB Sound Measurement

The GN101 measures sound pressure levels across a range of approximately 35 to 135dB, making it suitable for a variety of everyday and technical noise measurements.

It can be used to compare noise levels in locations such as offices, classrooms, workshops, factories, homes, equipment rooms, and outdoor environments.

A-Weighted Measurement

The GN101 uses A-frequency weighting (dBA), which adjusts the measured sound response to more closely approximate the sensitivity of human hearing.

A-weighting is commonly used when evaluating environmental and workplace noise because the human ear does not respond equally to all frequencies.

FAST & SLOW Response

Two time-weighting modes are available:

FAST – 125ms
Useful for monitoring rapidly changing or fluctuating sound levels.

SLOW – 1 Second
Provides a more stable display when measuring relatively steady environmental noise.

This allows the response of the instrument to be selected according to the type of sound being measured.

MAX/MIN & Data Hold

The MAX/MIN function allows the user to monitor maximum and minimum measured values, making it easier to identify changes or peak noise levels.

The Data Hold function freezes the current reading on the display so it can be viewed or recorded conveniently.

Ambient Temperature Measurement

In addition to sound levels, the GN101 can measure ambient temperature from approximately:

-20°C to +70°C
-4°F to +158°F

Temperature can be displayed in either Celsius or Fahrenheit.

Color Backlit Display

The GN101 features a clear color LCD with backlight, making measurement values easy to read in both bright and low-light environments.

The display provides quick access to sound level, temperature, measurement mode, and other operating information.

Portable & Battery Powered

Powered by 3 × AAA batteries, the GN101 is compact enough for portable measurements in workshops, offices, industrial environments, classrooms, and field applications.

The meter can automatically switch off after approximately 15 minutes of inactivity to conserve battery power. Automatic power-off can also be disabled when continuous monitoring is required.

Applications

Ideal for environmental noise monitoring, workplace noise checks, machinery and equipment testing, factories, workshops, offices, classrooms, home noise measurement, HVAC testing, audio equipment evaluation, construction sites, vehicle noise testing, laboratory experiments, educational use, and general sound-level measurements.

Important Note

The GN101 measures sound pressure level in decibels. It is not a microphone for recording audio and does not provide frequency-spectrum or octave-band analysis.

The stated IEC 61672-1 Class 2 specification is based on the product's supplied specifications. For legally regulated occupational, environmental, or compliance measurements, users should verify whether the individual instrument has the required calibration and certification for the applicable standard.

Measurement results can be affected by microphone orientation, wind, reflections, distance from the sound source, background noise, temperature, and surrounding surfaces.

For more consistent measurements, hold or mount the meter away from the body and point the microphone appropriately toward the sound source.

Package Includes

• 1 × ANENG GN101 Digital Sound Level Meter
• 1 × User Manual

Batteries Not Included