Check the listing for details. Digital Accurate Sound Level Meter Exponential Time Weighted Noise Level Tester. Color: Black, Condition: New. Listed at 195.00 USD. Digital Accurate Sound Level Meter Exponential Time Weighted Noise Level Tester Note: Battery not Included During The Shipping !!! Application: The Accurate Sound Level Meter is a universal sound level meter that measures the exponential time weighted sound level Features: Its performance is in accordance with GB/T 3785-2010 standard level 2 And IEC 61672:2013 Class 2 sound level meter requirements. It also meets the JJG 188-2017 standard. The two time weighting F, S can be selected. The digital detection technology is used to replacesome traditional sound level meters, the stability andreliability are greatly improved. Large screen display is adopted, with clear and intuitive display. With dynamic scale display. Specifications: Microphone Φ12.7mm (1/2') test condenser microphone Frequency weighting A, C, and Lin(Linear) Range 25dB~130dB (A) Range control Manual, three gears, linear range > 60dB Testing Range 30dB~90dB (dynamic scale display 10~100) 50dB~110dB (dynamic scale display 30~120) 70dB~130dB (dynamic scale display 50~140) Accuracy In accordance with IEC61672 standard, class 2 Time Weighting Fast (F), Slow (S) Display Large screen dynamic LCD, instantaneous sound level, with analogammeter display. Calibration Use class 1 sound level calibrator Power Supply 4x1.5V AAA Size (UM-4) Battery (NOT INCLUDED) External Power 6V Weight 185g (Not Including Batteries) Dimensions 227x63x26 mm Operating Condition Temperature: -10~50°C Standard Accessories Main Unit Windscreen Carrying Case (B04) Manual Optional Accessories External power supply (6V)