Multifunctional instrument for ecological measurements

MACHINE TRANSLATION (not authorised yet)

Multifunction instrument for sound, light, humidity and temperature measurements. The whole thing is placed in a handy bag. Battery powered (9V). Dimensions of the device: 64x251x40 mm. Ranges:
luxometer 20 / 200 / 2000 / 20000 lx; +/- 5 lx;
sound 35...100 dB / 65...130 dB; +/- 3.5 dB;
humidity or 25...95%, +/- 5%,
temperature -20...200 ^oC.