SOUND LEVEL METER This is a brand new CEM DT-8820 CE certified industrial digital multi-function environment meter. This 4-in-1 meter replaces 4 traditional meters to make your work a lot simpler and efficient. Forget about the old analog devices. This newly designed digital light weight device gives you long lasting power with accurate measurement. The build-in Sound level, Light, Humidity, and Temperature measuring functions replace meters with over $500 combined cost. A FREE heavy duty carrying bag is also included for bringing your device to the fields conveniently. FEATURES * Condition: Brand new in retail box. * Display: 0 - 1999 count.  * 4 in 1 for Light meter, Sound Level meter, Relative Humidity meter, Temperature meter. * 3 1/2 digit large LCD display with units of Lux, oC, oF, %RH and C & dB, A & dB indication. * Auto power off. * Data hold and Maximum hold. * Accessories: 9V battery, temperature probe.  SPECIFICATIONS * Light measuring levers ranging from 0.01 Lux to 20,000 Lux with + 5% accuracy. * Temperature measuring levers ranging from -20 oC ~ 750 oC / -4 oF ~ 1400 oF with accuracy of + 3.5% + 2oC/F * Humidity measurement from 35%RH to 95%RH with 0.1%RH resolution and fast time response. Accuracy: + 5% * Sound level measurement from 35dB to 100dB or 65 dB to 130 dB for A, C Frequency weighting checking with 0.1 dB resolution. Accuracy: + 3.5 dB * Dimensions/Wt.: 251.0 X 63.8 X 40mm/250g