This meter is a digital multifunction environment meter which combined the function of Sound Level, Luminometer, etc

Features:1) Multifunction: Sound Level, luminometer, Relative Humidity Meter, Temperature Meter and anemometer2) Numerical Display: 4 digital Liquid Crystal Display3) Response Time:  about 2 times/second.4) Operating Environment:-10°C~60°C(14°F~140°F)5)  Storage Environment:-10°C~50°C(14°F~122°F)6) Power Requirements: Battery  One 9V battery 006p or IEC 6F22 or NEDA16047) Low Battery Indication:   displayed8) Dimension: 280(L)x 89(W)x 50(H)mm; Weight: Approx.430g

Digital Multifunction Environment Meter