4-in-1 Noise Decibel Meter 30-130dB — Fast-Response Sound Level Meter with Temp, Humidity, 24H Clock & 4000mAh Type-C

Overview: Portable 4-in-1 desk sound level meter for accurate noise monitoring with quick response. Measures sound while showing temperature, humidity and time; includes alarm and long-term data storage. Key specifications: - Measuring range: 30-130dB - Accuracy: ±1.5dB (standard sound source 94dB@1KHz) - Frequency respond range: 31.5Hz-8.5KHz - Frequency weighting: A Weighting (ambient noise) - Response: Fast - Microphone: 6mm condenser microphone - Digital display: 3 digits Display & alerts: - Alarm (sound + display): yes - Alarm clock: yes - Time display: 24-hour system - Temperature display: 2 digits - Humidity display: 2 digits Data & connectivity: - Storage function: 2s/unit, store for 1 year - Connecting to computer: Communicate with the computer via wire Power & battery: - Power supply: DC5V 1A Type-C USB port - Low battery warning: less than 3.6V ± 0.1 - Li-ion capacity: 4000mAh 3.7V Environmental & physical: - Operating temperature and humidity: 0~40°C, 10%~80%RH - Storage temperature and humidity: -10~60°C, 10%~70%RH - Dimension: 151x48x86mm - Product weight: 281g Package contents: 1*Desk Sound Level Meter 1*USB Cable 1*User Manual