Professional sound level meter with Bluetooth module
Digital Bluetooth sound level meter with A-weighting characteristic. The A filter corresponds to the human ear’s frequency sensitivity. Equipped with max hold function and low battery indicator. Perfect for sound engineers, workplace safety officers, and many other professionals.

Built-in BLUETOOTH function allows storing and analyzing results in a mobile app compatible with Android 5.0+ and iOS.

Technical specifications:

• Measurement range: 30~130 dBA
• Accuracy: ±1.5 dB
• Frequency range: 31.5 Hz~8 kHz
• Weighting filter: A
• Resolution: 0.1 dB
• Operating conditions: 0~40°C, 10~80%RH
• Storage conditions: -10~60°C, 0~90%RH
• Power supply: 3× AAA 1.5V batteries
• Weight: 96.38 g (without batteries)
• Dimensions: 56.1 × 177 × 36.03 mm
• Tripod mount: 1/4" thread (fits most tripods and monopods).

Device functions:

1. Digital sound level meter with mobile app via Bluetooth, supporting various operations. Includes data logging up to 20,000 records (Bluetooth version only).

2. Sound level measurement (dBA).

3. MIN/MAX / current value hold.

4. Measurement date logging.

5. LCD backlight function.

6. Manual and automatic power-off.

7. Visual alarm (screen backlight).

App for Android and iOS
The app allows real-time analysis and data storage.
Displays measurement charts, enables review later and deletion of unwanted records.
Data can be saved in phone memory or exported to spreadsheets and transferred to a computer.

DISPLAY ELEMENTS DESCRIPTION

1. Battery level indicator.

2. Bluetooth icon (WT85B version only).

3. OVER icon – out-of-range measurement.

4. Measurement hold.

5. Minimum value.

6. Maximum value.

7. Sound level reading.

8. Sound intensity unit (A filter).

HOUSING ELEMENTS DESCRIPTION

1. Power/backlight button.

2. MIN/MAX button.

3. Measurement hold button.

4. LCD display.

5. Capacitive electric microphone.

6. Noise-reduction sponge.

7. Calibration knob.

8. Device label.

9. Battery compartment cover.

Additionally, the back of the device has a thread for tripod or selfie-stick mounting.

PACKAGE CONTENTS:

• Sound level meter

• Noise-reduction sponge

• 3 × AAA batteries

• User manual in Polish/Ukrainian

• Original packaging

BENETECH – manufacturer of professional measuring and control instruments.
All products undergo strict quality control. As a result, BENETECH devices are recognized as reliable and high-quality at an affordable price.