Decibel Meter 30dB-130dB, Wall Mounted Hanging Sound Level Meter for Classroom Noise, Large Screen S…See more

Features & details Features 【WIDE APPLICATIONS】— The decibel meter features a highly sensitive which is capable to measure noise levels from 30 to 130 dB with an accuracy of ±1.5 dB, which can be used in noise engineering, quality control, health control and various environmental testing.

It is widely applicable for personal, classrooms, restaurants, families, business, studies, industrial and etc.

【ALARM FUNCTIONS】—Buzzing and flashing to remind you when the real time measurement is reach to the alarm level, and hold the data for 3s then back to normal mode.

With the hanging hole, the sound level meter can installed on the wall to or free stand on the table.

【LARGE LCD DISPLAY】—Large LCD Digital Display with Backlight--Super large 9.6 inch LCD digital display with backlight that makes reading more clear and visually in dark areas.

【EASY TO USE】—DB meter with the backlight feature short press the "switch machine" button to shut down, long press the "switch machine" button, automatic startup function: the product will automatically turn on when connected to the power supply, long press the "switch machine" button, it will shut down.