Digital Decibel Meter,Sound Level Meter with 30 to 130 dBA for Classroom,Home,Hand-held Noise Meter, S8607 noise meter is the use of environmental sound level instrument, can be widely used in such as factories, workshops, schools,residential, office areas, traffic roads, audio and other occasions of sound level measurement. Operating environment: - altitude < 2000 m - relative humidity 90%rh - operating temperature 0~+40 Features - A Weighted network (automatic switching range display) - F/S (fast/slow mode selection) - Maximum (MAX) measurement - Minimum value (MIN) measurement - The measurement result (HOLD) function - Sound level OVER or UNDER indicates - LCD with Backlight - Auto Power Off function - Low-battery indicator Frequency Response31.5Hz~8KHzMeasuring Range30~130dBAccuracy1.5dB94dB@1KHz)Display Resolution0.1dBFrequency weightingA sound level frequency meter weightBattery 3 AAA batteriesOperating Temperature0~+40 Operating Humidity10~90%RHStorage Temperature-10~60 Storage Humidity10~75%RHBoundary Dimension150x52x30mmWeight102gAccessorysound level meter,Instruction manual,7 AAA batteries,paper box Network Cable Tester Professional Cable TracerShop YILTIONNOYAFA NF-826 Underground Cable Tester Locator Circuit Tracer Metal Pipe Detector Wire Tracker Tool Detects Wall\Underground Wires, Cables, Water and Gas Pipeline Paths4.1 out of 5 stars.55NOYAFA NF-8508 Network Cable Tester with Optical Power Meter VFL, RJ11 RJ45/PoE Tester/CAT5 CAT6/length Measurement, Telephone line Trace Meter with Headset, Network Tools4.1 out of 5 stars.30NOYAFA NF-468CS Network Cable Tester Telephone & Continuity