The environmental tester 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 environmental tester 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 environmental tester is an optimal sound level meter for measurements at workplaces, construction sites, in traffic, airports, etc. The environmental tester is a class 2 device and is equipped with an octave band frequency filter. The environmental tester 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: 0.001 ... 40 / 40 ... 100 NTU
• Resolution: 0.001 / 0.1 NTU
• Accuracy: ±2% of rdg. / ±5% of rdg.
• Repeatability: ±2%
• Protection class IP65
• Power supply: 12V DC
• Suitable for fresh water

The environmental tester 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 environmental tester 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 tester 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)

• Temperature measuring range: 0 … +60 °C (Celsius only)
• Humidity measuring range: 10 … 95 % RH
• Up to 50 m (164 ft) reading distance
• External sensor (wired)
• Voltage supply: 230 V AC
• with analogue output 4 … 20 mA
• incl. ISO calibration certificate

• Measuring range up to 20,000 A/cm
• Angled axial probe
• AC, DC and pulse measurements
• Measurement of residual magnetism possible

An electrostatic measurement is particularly important to check whether surfaces, components or the human body are electrostatically charged. Such electrostatic charges can be detected with the environmental tester.

• Measuring range: ±60 kV DC
• Acoustic signal when the measured value is exceeded
• Temperature and humidity display
• Laser for aligning the measuring device

The environmental tester is used in offices, workshops or in laboratories to carry out indicative measurements of the environmental conditions. In addition to the number of particles, the environmental tester determines the mass concentration of PM2.5 and PM10 in the measuring range 0 … 1000 µg/m³.

• Measurable particle sizes: PM2.5 / PM10
• Particle sizes: 0.3 / 0.5 / 1.0 / 2.5 / 5.0 and 10 µm
• Mass concentration
• Particle counter
• Temperature
• Humidity (RH)
• Flash memory for approx. 12 measurement runs