It is lightweight, compact, easy to carry, and is not limited by location or location. Windproof Sponge Design: The microphone is designed with a windproof sponge, more accurate sound collection, filtering the impact of wind on the sound.
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It is lightweight, compact, easy to carry, and is not limited by location or location. Windproof Sponge Design: The microphone is designed with a windproof sponge, more accurate sound collection, filtering the impact of wind on the sound.
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15 minutes of inactivity. Operation Temperature: 0 to 40°C [32 to 104°F]. Digital Display: 3-1/2 digits. Display: LED. Alarm Function: "OL" is show when input is out of range [>130dB] "Un" is displayed when the input is less than the range [<30dB].
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Alarm sound output function. With upper and lower limit alarms. With hanging holes, can be hangged on the wall. Frequency Response Range: 31.5Hz~8.5KHz.
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Working temperature and humidity: 0~40℃, 10~80%RH. Data retention. Frequency response: 31.5HZ~8kHZ. Accuracy: 1.5dB. Easy to use.
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Accuracy: ±1.5dB (standard sound pressure, 94dB at 1KHz), ± 5dB (standard sound pressure, 94dB at 8KHz). Bargraph: Yes, Auto/Manual Range: Yes, Under/Over Range: Yes, BackLight: Yes, Data Hold: Yes, MAX/MIN Hold: Yes, Auto Power Off: Yes, Low Battery Indication: Yes, USB Data Logger: Yes.
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Alarm function. Data storage. Super large 9.6" LCD digital display with backlight that makes reading more clear and visually in dark areas. Alarm Reminder(sound+display) Yes. Resolution 0.1dB(<100dB), 1dB(>100dB).
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✅ 4-in-1 Smart Monitoring Simultaneously track noise levels (dB), temperature (°C/°F), humidity (%), and time on one screen—no need for multiple devices. ✅ Crystal-Clear 11" LED Display The oversized anti-glare screen ensures visibility even in bright environments. Adjust brightness with a single click (▲/▼) for day/night use. ✅ Professional-Grade Accuracy Advanced semiconductor sensors deliver ±1.5dB precision (50Hz-8.5kHz range), outperforming standard classroom/office noise meters. ✅ Wall-Mount or Tabletop Flexibility Includes mounting brackets + non-slip pads. Perfect for permanent installation or portable monitoring across rooms. ✅ 10-Hour Battery & Fast Charging The 2000mAh battery lasts a full school/workday. Recharge via any USB port (phone charger/power bank compatible).
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