The 4-in-1 multifunction environmental meter consists of a sound level meter, a lux meter, a humidity meter and a temperature meter. and it is especially suitable for carrying out indicative measurements of the 4 parameters.

• The sound level meter makes it possible to carry out sound measurements in factories, schools, offices, airports, in addition to estimating the sound conditions in studios, pavilions and environmental acoustics for the installation of Hifi- and Dolby-Surround equipment.
• The lux meter determines the light conditions outdoors and in the workplace. The measurement is carried out with a light-sensitive silicon diode.
• The temperature and humidity meter works with an air and humidity semiconductor and a K-type sensor for air humidity and temperature measurements.

FEATURES

• 3 ½ position 17mm LCD display with function symbols
• sound level meter
• lux meter
• Temperature and humidity meter
• Indicator of maximum exceedance with the figure „1“
• Data hold function
• Max hold function
• Auto power off
• Tripod mount

TECHNICAL SPECIFICATIONS

sound level meter

• Range indicator A/C Lo (low) 35 ... 100 dB
• A/C Hi (high) 65 ... 130 dB
• Measurement range 50 ... 130 dB
• Resolution 0.1dB
• Frequency range 30Hz 10kHz
• Frequency assessment A+C assessment
• Quick Temporary Assessment
• Accuracy ±3.5 dB at 94 dB sound level, 1 kHz sinoidal signal
• Microphone Electric condenser microphone

lux meter

• Measurement range: 20 / 200 / 2,000 / 20,000 lux (20,000 lux range = indicator x 10)
• Overrange: „1“ at highest value position (measuring range is selected one position higher
• Accuracy: ±5% of measurement value + 2 digits
• Measurement succession: ±2%
• Temperature characteristic: ±0.1% / ºC
• Sensor: Silicon photodiode with filter

Moisture meter

• Measuring range: 25 ... 95 % R.H.
• Resolution: 0.1%
• Accuracy: ±5% (at 25%, 35% and 95% air humidity)
• Overload protection: 60 V DC or 24 V AC

temperature gauge

• Measuring range: -20...+200 °C / -20...+750 °C
• Resolution: 0.1ºC / 1ºC
• Accuracy: ± 3% of measured value ± 2 °C (-20...+200 °C)
• ± 3.5% of measured value ± 2 °C (-20...+750 °C)
• Overload protection: 60 V DC or 24 V AC

GENERAL SPECIFICATIONS

• Display: 17 mm 3 ½ position LCD display (max. indicator 1999) with automatic polarity indicator and function symbols
• Display symbols for: lux, x10lux, °C, °F, %RH, dB, A+dB, C+dB, Lo+dB, Hi+dB, MAX HOLD, DATA HOLD
• Out of range indicator: The figure "1" appears alone on the screen
• Measurement sequence: Approx. 1.5 times per second
• Temperature for given accuracy: 23°C ± 5°C
• Ambient temperature: -10 ... +60 ºC
• Power: 1 9V battery (PP3)
• Device Dimensions: 251 x 64 x 40mm
• Light Sensor Dimensions: 115 x 60 x 27mm
• Weight: 250g
• Box contents: Wind noise suppressor, temperature probe, battery, case, instruction manual