Features: It can convert ambient sound into electrical signals, process data and displays results on LCD. The sound level meter is compact and light weight, convenient to carry. A and C weighted network selection. Equipped with sponge ball to filter-out unwanted signals. Clear LCD with backlight, convenience for night use. Great tool for monitoring noise levels in hotels, conference halls, home theater, hospitals, and any other noise sensitive environments. Specifications: Brand: PEAKMETER Model: PM6708 Accuracy: ±1.5dB (sound pressure standard, 94dB at 1KHz) Sound pressure frequency response: 30Hz-8kHz Measurement Range: 30-130dBA, 35-130dBC Sound pressure frequency weighting: A and C characteristics Dynamic characteristic of sound pressure: FAST 125ms, SLOW 1sec Microphone: Polarized capacitive microphone Display: Analogy bar and digital double display Automatic measurement range: Yes Respond speed: Fast and Slow selection Max data hold: Yes Under voltage indication: Yes Backlight: Yes Safety rating: EN61010-1, EN61326-1 Color: Orange Battery: 4 x 1.5V AAA Battery (NOT included) Size: Approx. 184 x 60 x 29mm/7.24 x 2.36 x 1.14in Weight: Approx. 323g Package Included: 1 x Sound Level Meter 1 x Black Bag .