Sonometer GM1356 is a professional digital device for measuring sound intensity levels within the range of 30–130 dB, equipped with two filtering modes: A and C. Thanks to its precise microphone and data logging capability, the device is perfectly suited for use in industrial environments, offices, educational institutions, laboratories, and environmental noise monitoring.

The device meets the requirements of IEC651 and ANSI S1.4 TYPE 2 standards, making it a reliable tool for both professional and educational use.

Key features and advantages:

• Wide measurement range: 30–130 dB (A and C)

• A-weighting filter – corresponds to human ear sensitivity

• C-weighting filter – for measuring machine and equipment noise

• FAST/SLOW modes – fast or slow sound reading

• Data logging (datalogger): memory up to 4700 measurements

• USB connection to PC: data reading from memory or in real time

• AC/DC output: allows connection to an oscilloscope or other external devices

• Backlit LCD screen with automatic illumination

• Tripod mount capability – for long-term measurements

• MAX HOLD function: stores maximum recorded value

Technical specifications:
Measuring range:
30–130 dBA
35–130 dBC

Accuracy: ±1.5 dB
Resolution: 0.1 dB
Frequency range: 31.5 Hz – 8.5 kHz
Sampling rate: 2 times/sec
Microphone type: 1/2 inch capacitive (electret)
USB interface + analytical software

Indicators:
overload (OVER/UNDER)
low battery level

Auto power off: Yes
Power supply: 4 × AA or DC 6V adapter
Dimensions: 256 × 70 × 35 mm
Weight: 308 g (with batteries)

Set contents:
Sound level meter GM1356
Windshield cover (windshield foam)
4 × AA batteries
USB cable for computer connection
Output cable (AC/DC)
Plastic transport case
User manual in Polish
Original packaging

The BENETECH GM1356 sound level meter is a reliable measuring device that enables precise noise monitoring under all conditions. Perfect for technical, educational, and control applications.

BENETECH is a manufacturer of professional measuring and control instruments.

All products meet high quality standards and undergo full inspection before shipment. As a result, BENETECH products enjoy strong market demand and are recognized as reliable and high-quality, while being offered at an affordable price.