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✅【4-in-1 Multifunctional Decibel Meter】Wall-mounted noise decibel meter DM165AF not only can monitor sound level from 30-130dBA with +/-1.5 dBA high accuracy, but also can work as a large digital wall clock / humidity meter / temperature gauge to monitor indoor humidity from 20%~85% and check temperature from 14°F~122°F

✅【Auto Alarm Icons】Built with smart sound sensor, Kethvoz decibel reader not only can display voice decibel value, but also can would classify volume into 4 sound levels and display colorful decibel indicator icons(▂▃▅▆▇bar graph) timely, including less than 55dB, 55~65dB, 65~75dB, 75~85dB, 85~95dB and louder than 95dB. A good way to tell your kids, student, colleagues, band and noisy neighbor how loud they are and time to turn down their voice.

✅【Rechargeable dB Meter】Wall-mounted design with 2 hanging holes on the back of the digital noise meter and 9.9 feet(300CM) long charging cable included, so you can freely hang it on wall or just place it on table. Built-in 2000mAh lithium battery, Kethvoz decibel monitor can standby around 7 hours after fully charged.

✅【Adjustable Sampling Rate】4-button easy operation. Press 【M】button to adjust detect speed Fast, Medium, Slow. Press 【▲】or 【▼】button to adjust LED screen brightness. Long press【M】button to edit time.

✅【Wide Applications】Ultra Large 11'' LED display, making it easy to read even from a distance. Practical sound level indicator helps you to catch current sound level, humidity,time and temperature at glance. Widely used in classroom, hospital, gym, studio room, office, living room and bedroom etc.