Case of 4 electronic meters for environmental measurements

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Metal case lined with matching foams contains a series of digital meters - 4 modern, ergonomic instruments for ecological (environmental) measurements:

• Sound intensity meter, digital, 30..130 dBA
• Lux meter 0...200.000 lx with min.-max
function
• Wind an electronic wind meter with temperature measurement
• The relative humidity and air temperature meter
  
  

The exact descriptions of the meters below. All can also be purchased separately. They are included in a snap closed metal case with secured corners and a comfortable 39 x 10 x 28 cm handle. The centre of the case is filled with two sponges cut to size, which protects the meters during handling and storage.

With a set we can measure:

• sound level (30...130 dB) /dBA = scaled to human ear sensitivity curve/
• lighting (0...200000 lx)
• relative air humidity + air temperature (-10°C...+50°C; 10...99%)
• air speed (wind) and temperature (0...90 km/h; -10...+45 st.C).

Detailed instrument-specific parameters:

Sound intensity meter, digital, 30...130 dBA
Sound intensity meter - digital decibel meter, with multi-level LCD display (3 ½; displayed digit: 10 mm), enables quick and easy measurement of sound intensity in the range of 35...130 dB(A), which means a sound measurement based on the audibility and perception of sounds by the human ear (curve frequency / A filter reflects the characteristics of the human hearing curve). The decibelometer has two measurement modes - fast (125 ms) and slow (1 s). It measures min. and max. values. Calibrated at the factory. Particularly suitable for measurements in places of learning and work. Accuracy: +/- 1,5 dB. Resolution 0,1 dB. Frequency 31,5 Hz...8,5 kHz. Self-calibration: 10 sec. ½ electret microphone. Low battery indicator. Diode screen illumination - turns on automatically at low ambient light. Powered by 9V battery (included). Wind protector included. Operating at ambient temperature/ humidity: 0 - 40°C / 10...80% ohms or compact, ergonomic and modern housing. Compliant with IEC651 Type 2 and ANSI S1.4 Type 2 and 2011/65/EU. Adapted for screwing in the tripod (not included). Dimensions: 55 x 135 x 35 mm, weight 120 g.

Lux meter 0...200.000 lx with min.-max
Light intensity meter - digital lux meter, with multi-level LCD display (3 ½; displayed digit: 10 mm), enables quick (1.5x/sec sampling) and easy measurement of light intensity in 3 ranges: 0...2000 lx / 20.000 lx / 200.000 lx. Min. and max. value indicator Calibrated at the factory (colour temperature: 2.856K). Compact, ergonomic and modern housing. Photodiode sensor with high sampling rate (1.5x/sec.). Particularly suitable for measurements in learning and working areas as well as environmental measurements. Measurements: in Luxach (lx) or lm/ft2. Accuracy: +/- 4% reading. <10 clx; +/- 5% >10 clx. Resolution: 1 lx (2000), 10 lx (20000), 100 lx (200000). Sampling 1.5x/sec. DATA-HOLD function (freeze measurement on display). Diode screen illumination - switches on automatically at low ambient light. Powered by 9V battery (included). Low battery indicator. Automatic switch off after 10 minutes of standstill. Ambient temperature/humidity: 0 - 50 degrees C / <80% ohmm. or compact, ergonomic housing. Compliant with standards 2004/108/EC and 2011/65/EU. Adapted for screwing in the tripod (not included). Dimensions: 55 x 155 x 35 mm, weight 120 g.

Wind anemometer electronic with temperature measurement
Electronic, windmill anemometer, i.e. air flow meter, takes measurements in different units: m/s, km/h and in feet per minute (ft/min), knots and miles per hour. Additionally, it also measures air temperature (in degrees C or F) and both of these values are simultaneously displayed on a multi-level LCD display (3 5/6; digit displayed: 10 mm). Pressing a separate button displays the average and maximum value. Compact, ergonomic and modern housing. Factory calibrated. Accuracy: +/- 5% (air flow); +/- 2 st.C; +/- 3,6 st.F (air temperature). Measurements: 1,5/sec. Ranges (for m and st.C) : 0...30 m/s; -10...45 st.C. Low battery indicator. Diode screen illumination - switches on automatically at low ambient light. Powered by a 9V battery (included). Automatic switch off after 10 minutes of standstill. Ambient temperature/humidity operation: -10...45 deg C / < 80% ohmm. or compliant with EU directive 2004/108/EC. Adapted for screwing in the tripod (not included). Dimensions: 55 x 155 x 35 mm, weight 120 g.

The relative humidity and air temperature meter
The relative humidity and air temperature meter, electronic, with a multi-level LCD display (3 ½; displayed figure: 10 mm), enables quick and easy measurements in living quarters, work and study places and facilities such as greenhouses. Measuring ranges: 10%...99% (relative humidity); -10...50°C (air temperature). Factory calibrated. Compact, ergonomic and modern casing. Accuracy of relative humidity measurements: +/- 3% (at 25°C; 30...90% wilg.wzg.); +/- 5% (at 25°C; 10...30% wilg.wzg.). Resolution: 0.1% (olfa); 0.1 deg C (temp.). Sampling 2x/sec. Low battery indicator. Diode screen illumination - switches on automatically at low ambient light. Powered by 9V battery (included). Automatic switch off after 10 minutes of standstill. HOLD function (stopping the measurement value on the display). Operation in ambient temperature/humidity: -10...40 st. C / <99% ohmm. or compact, ergonomic housing. Compliant with standards 2004/108/EC and 2011/65/EU. Adapted for screwing in the tripod (not included). Dimensions: 55 x 145 x 35 mm, weight 158 g.

The whole is placed securely in a case with metal snap fasteners with secured corners and a comfortable 39 x 10 x 28 cm handle filled inside with two matching safety sponges.