PCE-SDL 1 is a class 2 (type 2) data-logging sound level meter, sound pressure level (SPL) meter, noise meter or decibel (dB) meter used for long-term acoustic measurements.

• Measuring range: 30 … 130 dB
• Accuracy: ± 1.4 dB
• Frequency: 31.5 Hz … 8 kHz
• Frequency weighting: A and C
• Memory: Stores up to 129,920 data sets or 36 hours at 1-sec interval
• Includes USB interface and Windows-compatible software for data transfer to PC

PCE-322A is a handheld, portable, professional Class II sound pressure level (SPL) meter or decibel (dB) meter with built-in data-logging or data-recording functionality. Thus, PCE-322A is ideal for real-time noise measurement as well as for long-term noise exposure monitoring over time.

• Sound measuring range: 30 …130 dB
• Resolution: 0.1 dB
• Accuracy: ±1.4 dB
• Memory: Stores up to 32,700 readings
• Sampling rate: 2 times per second
• ISO calibration available as an option