• alternating voltage: 40 ... 400 V
• alternating current: 0 ... 80 A
• resolution: 0.01 V / 0.01 A
• active, apparent and reactive power
• electrical energy in Wh
• incl. app for Android
• 8 MB internal memory
• magnetic measuring adaptor
• incl. ISO-Calibration Certificate

• alternating voltage: 40 ... 400 V
• alternating current: 3 ... 4800 A
• resolution: 0.01 V / 0.01 A
• active, apparent and reactive power
• electrical energy in Wh
• incl. app for Android
• 32 GB internal memory
• magnetic measuring adaptor

The sound level data logger is an optimal sound level meter for measurements at workplaces, construction sites, in traffic, airports, etc. The sound level data logger is a class 2 device and is equipped with an octave band frequency filter. The sound level data logger can optionally be upgraded with a 1/3 octave band filter.

• Accuracy class 2
• 1/1 octave band included
• 1/3 octave band optional
• A, B, C & Z frequency weighting
• Fast, Slow, Impulse and Peak time weighting
• Statistics function
• Including class II sound calibrator
• Including calibration certificate for sound calibrator

• Measuring range: -200 ... 1800°C / -328 ... 3272°F
• High accuracy:
• Thermocouple types: K, J, S, R, E, T, N, B
• Memory for 10 million measured values
• Alarm limits adjustable
• 12 input channels
• PC software
• incl. ISO-Calibration Certificate

PCE-428 is a class 2 data logging sound level meter that meets IEC 60651:1979, IEC 60804:2000, IEC 61672-1:2013, ANSI S1.4-1983 and ANSI S1.43-1997 requirements. This portable high-accuracy sound level data logger has a large easy-to-read illuminated LCD screen that displays the sound pressure level (SPL) numerically and graphically in real time. The sound level data logger calculates the equivalent continuous sound level Leq (LXeq).

• Measuring range: 25 … 136 db(A)
• LXY (SPL), Leq (LXeq), LXYSD, LXSEL, LXE, LXYmax, LXYmin, LXPeak, LXN
• Frequency weighting: A, B, C and Z
• Time weighting: Fast (125 ms), slow (1 sec) and impulse (35 ms), decay (1500 ms)
• adjustable data-recording interval from 1 s … 24 h
• 1/1 octave band filter (optional 1/3 octave band filter upgrade)
• incl. ISO Calibration Certificate

The sound level data logger is an optimal sound level meter for measurements at workplaces, construction sites, in traffic, airports, etc. The sound level data logger is a class 2 device and is equipped with an octave band frequency filter. The sound level data logger can optionally be upgraded with a 1/3 octave band filter.

• Accuracy class 2
• A, B, C & Z frequency weighting
• Fast, Slow, Impulse and Peak time weighting
• Statistics function
• 1/1 octave band included
• 1/3 octave band optional
• Including class II sound calibrator

• Measuring range: 70 … 140 dB
• Frequency weighting: A, B and Z
• Battery life: >15 hours
• LEQ measurement
• Memory
• USB interface
• Battery / power supply
• Software download
• Standards: IEC 61252:2002, ANSI S1.25-1991
• incl. ISO-Calibration Certificate