Description

PCE Instruments Class 2 Sound Level Meter (PCE-428) is a Class 2 data-logging SPL meter designed for high-precision environmental and workplace noise monitoring. With a wide measuring range from 25 to 136 dB(A), this device complies with multiple international standards, making it a trusted tool for industrial, environmental, and compliance measurements.

This handheld sound meter features a 1/1 octave band filter with an optional 1/3 octave band upgrade, ensuring precise frequency analysis.

Specifications and Dimensions
- Measuring Range: 25 … 136 dB(A)
- Frequency Range: 20 Hz … 12.5 kHz
- Accuracy: Class 2 (±1.5 dB)
- Data-Logging Interval: 1 sec … 24 h (adjustable)
- Frequency Analysis: 1/1 octave (standard), 1/3 octave (optional upgrade)
- Microphone Type: 1/2″ electret condenser
- Measurement Functions: SPL, Leq, Lpeak, Lmax, Lmin, LXE, LXYSD, and more
- Time Weightings: Fast (125 ms), Slow (1 sec), Impulse (35 ms)
- Display: 160 x 160 pixel LCD with backlight
- Memory: 4 GB micro SD card (expandable)
- Interfaces: USB, RS-232
- Voltage Output: AC 5V RMS / DC 10 mV/dB
- Power Supply: 4 x 1.5V AA batteries or 12V / 1A power adapter
- Battery Life: 10+ hours of continuous use
- Dimensions: 70 x 300 x 36 mm / 2.76 x 11.81 x 1.42 in
- Weight: Approx. 620 g / 1.4 lbs (including batteries)

Key Features and Benefits
- Class 2 sound level meter meeting IEC 61672-1:2013 and ANSI standards
- Wide frequency range from 20 Hz to 12.5 kHz for precise noise analysis
- 1/1 octave band filter (standard) with an optional 1/3 octave band upgrade
- Data logging with adjustable recording intervals from 1 second to 24 hours
- USB and SD card storage for easy data transfer and analysis
- A, B, C, and Z frequency weightings to meet industry compliance standards
- Fast, slow, and impulse time weightings for accurate peak and average noise readings
- High-resolution LCD display with real-time graphical and numerical readouts
- Portable design with up to 10 hours of battery life for long-term measurements

Includes
- 1 x PCE-428 Class 2 Sound Level Meter
- 1 x 1/2″ Microphone
- 1 x Wind Noise Suppressor (Foam Ball)
- 1 x USB Cable
- 1 x 4 GB Micro SD Card
- 1 x Power Supply Adapter
- 1 x User Manual
- 1 x Carrying Case