Decibel Meter, TopTes TS-501B Sound Level Meter with 2.25” Backlit LCD Screen, Portable SPL Tester with A/C Weighted, Range 30-130dB, MAX/MIN, Data Hold, Use for Home, Noisy Neighbor, Factory - Orange

TopTes is specialized in the production, sales, and engineering design of home environment testing instruments. We’re glad to provide homeowners, craftsmen, and DIYers around the world with a broad assortment of quality tools that enhance productivity, inspire creativity, accelerate a side hustle or simply help check items off the task list around the house. Be the top tester for every household's needs. ---TopTes The TS-501B sound level meter, with weighting, ranges from 30 to 130 dB. In a quiet environment, it reads between 30 and 45 dB. The microphone of decibel meter converts the sound signal to an equivalent electrical signal. With a screen protector to avoid scratches on the screen of the decibel meter during transportation. The durable plastic anti-slip strips on both sides of the noise meter TS-501B, increase friction. The velvet cloth pouch with bungee cord is easy to store and protect SLP meter TS-501B. The SPL meter TS-501B has a low battery reminder function to know when the battery needs to be replaced. The TS-501B sound level meter has a data hold function that can freeze readings. The TS-501B decibel meter can record the maximum and minimum values of sound over a period of time. Fast weighting(125 ms) is approximate to the ears’ time response. Slow weighting(1 s) is used to indicate the average level of fluctuating noise. Why doesn’t the TS-501B show 0 dB in a quiet environment? The TS-501B measures from 30–130 dB and does not start at 0 dB. When sound levels are below 30 dB, it displays “UL” (Under Limit). In a quiet environment, it reads between 30 and 45 dB. What scenarios are sound level meters usually used for? Sound level meters are often used for measuring community or environmental noise; Use for measuring noise produced by machinery in industries; Use for calibrating audio equipment at concerts or for personal reasons. What is the difference between A Frequency Weighting and C Frequency Weighting? The A-weighting adjusts the sound pressure level readings to reflect the sensitivity of the human ear and is used for hearing damage risk measurements. The C-Weighting is used for Peak measurements and also in some entertainment noise measurements. What is the difference MAX/MIN Value between A-Weighting and C-Weighting? MAX/MIN Value of A-Weighting is Lmax/Lmin (the highest and lowest values measured by the sound level meter over a given period of time.); MAX/MIN Value of C-Weighting is Lpeak (the max/min value of the absolute instantaneous sound pressure). Decibel Levels: Typical Scenarios 30-40 dB: Library, bedroom. 50-60 dB: Restaurant, café. 70-80 dB: City roads, factory machinery. 90-100 dB: Rock concert. 110-130 dB: Jet airplanes, front row at a concert.