Professional Sound Level Meter Wide measuring range: 30-130 dBA, fast response. Comply with the international standard IEC61672. Super Precision The Decibel Display comes with a sponge ball (windshield) to ensure the accuracy of the test data within a certain wind speed range and can play a protective role for the sound level meter. The sound level measurement performance is stable and reliable. Clear LCD Display Precision Pulse Sound Level Meter Backlit LCD display, clear reading, easy to use at night. It has Min./Max./Data Hold function and OVER warning signal for off-site measurement. Practical Design The half meter has a tripod mounting hole, which can be placed on a stand, making it easy to measure when you are busy. And there is a low battery indicator, manual/automatic shutdown. Portable Sound Level Meter: Small and easy to use, suitable for sound quality monitoring in children's rooms, offices, homes, schools and construction sites, etc. Quantity delivered: 1 piece Product color: black 1. Product parameters: Measuring range: 30~130 dBA Accuracy: 1.5 dB Digits and resolution: 4 bits and 0.1 dB Frequency response: 31.5 Hz ~ 8.5 KHz Frequency weighting characteristic: A (simulation of the human ear) Sampling rate: 2 times/second Microphone: 1/2 inch condenser microphone maximum lock Automatic backlight display Low battery display Manual/automatic shutdown Product size: 56.1 x 177 x 36.03 mm. Product net weight: 144 grams (including battery)Good quality product