Topiky Decibel Noise Meter, Sound Level Tester with 3 Inch Large LCD Screen, 30-130dB Wall Mounted, Digital Sound Level Monitor with Audible Alarm for Classroom Office

• High Visibility 3 Inch LCD Screen: This sound level meter features a large 3 inch LCD screen that displays bold, easy to read decibel readings even in brightly lit environments. The clear digital noise monitor display allows you to quickly assess noise levels without squinting, simplifying continuous monitoring in classrooms, offices, or any indoor space.
• Effortless Wall Mount Installation: Designed for permanent placement, this decibel meter includes secure mounting holes for simple wall installation. Mount it in high traffic areas like bars, schools, hospitals, or quiet zones to provide ongoing, hands free noise monitoring and maintain a controlled acoustic environment.
• Integrated Audible Alarm with Customizable Threshold: The noise tester activates both flashing indicator lights and a loud audible alert when noise levels exceed a preset threshold. With a default alarm Actuator up to 130dB, this dB tester provides immediate notice of excessive noise, helping you manage sound levels and enforce quiet zones effectively.
• Expandable Alarm with External Speaker Port: Equipped with a 3.5mm audio port, this LCD noise monitor can be connected to external speakers to amplify the alarm sound. This feature ensures the alert is heard clearly in larger spaces such as auditoriums, gymnasiums, or industrial areas, enhancing noise management capabilities.
• Responsive Microphone for Accurate Monitoring: Using a sensitive capacitive microphone with a metal vibration membrane, this sound level tester delivers instantaneous and stable decibel readings. It provides reliable, real time monitoring for classrooms, entertainment venues, and quiet zones, supporting your efforts to maintain comfortable noise levels.

Specification: Item Type: Sound Level Meter Material: ABS Measurement Range: 30-130dB Frequency Response Range: 31.5Hz-8.5KHz Frequency Weighting: Aweighting Response Speed: 8 times/second Accuracy: ±1.5dB Resolution: 100dB1dB Power Supply Mode: DC5V 1A Power Port Style: Type C Working Temperature: 0-40°C Working Humidity: 10%-80%RH Battery: Rechargeable Li Battery 2000mAh x 1 (Included) Package List: 1 x Noise Level Meter 1 x Manual 1 x USB Cable