RGBS LCD Digital Sound Level Meter Noise Monitor Measuring Instrument Decibel Monitoring Logger Tester LCD A/C Fast/Slow DB Screen 30-130dB

Features: Large LCD display, easy and clear for reading. Wide measuring range: 30-130dB. Level range control switch: 30-80dB, 50-100dB, 60-110dB, 80-130dB, 30-130dB. Maximum value(Max.) hold switch. Equivalent weight select switch: A/C. Time weight select switch: Fast/Slow. Over/under range alarm function; manual/auto shutoff function. Equipped with sponge ball. Handy instrument for sound quality control in factory, office, home, school and construction site.
Specifications: Display: LCD Measuring Range: 30-130dBA, 35-130dBC Accuracy: ±1.5dB(under reference conditions) Resolution: 0.1dB Time Weighting: FAST/SLOW Frequency Range: 31.5Hz to 8.5KHz Level Range: 30-80dB, 50-100dB, 60-110dB, 80-130dB, 30-130dB Linearity Range: 50dB / 100dB Frequency Weighting: A/C Digital Display: 4 Digits Sample Rate: 2 times/second Bar Graph: 50dB scale at 1dB step for monitoring current sound pressure level display Sample rate: 20 times/second Over Indication: OVER / UNDER AC Output: 0.707Vrms at FS output impedance approx.600 ohm DC Output: 10mV/dB, output impedance approx. 100 ohm Microphone: 1/2 inch electret condenser microphone Self Calibration Time: 3s Power Supply: 4 * 1.5V AA Batteries(not included) / DC 6V 100mA(Max. DC 9V) Operation Environment: 0-40°C 10-80%RH Storage Environment: -10-60°C 10-70%RH
Package List: 1 * Sound Level Meter 1 * Sponge Ball 1 * DC Adapter Cable 1 * User Manual (English)