Description Smart Sensor Model: AR-824 Sound level Meter Price in Bangladesh Smart Sensor Model: AR-824 Sound level Meter Price in Bangladesh The Smart Sensor AR‑824 is a cost-effective and compact handheld device ideal for professionals monitoring environmental or industrial noise levels. It provides accurate results with user-friendly features, making it suitable for electricians, safety inspectors, environmental monitors, and sound assessment professionals in Bangladesh. Key Features Measurement Range: 30–130 dB(A) and 35–130 dB(C), supporting both A-weighted and C-weighted sound metrics ([turn0search4]citeturn0search4turn0search17). Microphone: ½″ Electret condenser microphone with frequency range 31.5 Hz–8.5 kHz. Accuracy: ±1.5 dB, reliable for basic and intermediate-level noise detection ([turn0search3]citeturn0search3turn0search4). Display: 5-digit LCD with 0.1 dB resolution; backlight for low-light conditions ([turn0search4]citeturn0search4). Functions: Max-hold Auto power off Battery indicator Bar-graph level display 4 selectable measurement ranges Over-range indication ([turn0search4]citeturn0search4). Sampling Rate: ~2 readings per second Contact Us for more information || Visit our Facebook Page