Digital Noise Meter 30–130dB Sound Level Tester ±1.5dB – GAOTek

Description Overview The GAOTek Noise Meter is a compact and precise sound level measuring device with a wide 30–130 dB range. Equipped with a backlit LCD display, 6-gear analog display, and ±1.5 dB accuracy, it ensures reliable results in various environments. Lightweight at just 190 g (0.42 lb), with up to 30 hours of battery life, it is suitable for fieldwork, labs, schools, and industrial applications. Supports multiple versions (Chinese & English) with software and connection accessories available.   Features Wide Measurement Range: Accurately measures 30 dB – 130 dB, suitable for quiet rooms to industrial sites. High Precision: ±1.5 dB accuracy with 1 dB resolution for reliable sound level monitoring. Frequency Response: Covers 31.5 Hz – 8 kHz, ideal for environmental, workplace, and audio testing. Dual Display: Large backlit LCD with 6-gear analog display for real-time sound monitoring. Fast Response Time: Digital update in 160 ms and analog update in 40 ms for quick readings. Durable Microphone: Equipped with a 6 mm condenser microphone for long-term stability. Analog & DC Output: Supports AC 0.707 Vrms and DC 10 mV/dB outputs for external device connectivity. User-Friendly Design: Lightweight at just 190 g (0.42 lb), portable for indoor/outdoor use. Long Battery Life: Up to 30 hours continuous operation with a standard 9V battery. Environmental Adaptability: Operates reliably from 0°C to 50°C (32°F–122°F) with up to 80% RH humidity. Storage Ready: Can be safely stored at -20°C to 50°C (14°F–122°F) and ≤90% RH. Standard Accessories: Includes instruction manual, suitcase, and optional software & connection cable. Multi-Version Support: Available in Chinese & English versions for global usability.   Technical Specifications Frequency Range 31.5 Hz – 8 kHz Resolution 1 dB Accuracy (94 dB, 1 kHz) ±1.5 dB Update Time (Digital) 160 ms Update Time (Analog) 40 ms Analog Display (6 gears) 30–80, 40–90, 50–100, 60–110, 70–120, 80–130 dB Analog Output AC 0.707 Vrms (Full scale), DC 10 mV/dB Microphone Diameter 6 mm Battery Life 30 hours LCD Size 42 mm (H) × 62 mm (W) Operating Temperature Range 0°C ~ 50°C (32°F ~ 122°F) Storage Temperature Range -20°C ~ 50°C (14°F ~ 122°F) Operating Humidity Range ≤ 80% RH Storage Humidity Range ≤ 90% RH Grid Size 77 × 254 × 37 mm Specifications Chinese & English versions Battery 9V × 1 (not included) Accessories Instrument, instruction manual, suitcase (optional software & cable) Weight 190 g (0.42 lb)