FNIRSI FDM02 Professional Noise Meter High Precision 30dB to 130dB Measurement A C Weighting Color Screen Sound Level An

Specifications Screen 2 0 inch TFT color screenDisplay 4 digit number resolution 0 1dBFrequency Weighting A and C weighting modesTime Weighting FAST 125 milliseconds SLOW 1 second Frequency Response 31 5 Hz to 8 5 KHzDynamic Range 3 50 dBAccuracy ±1 5 dB Standard sound source 94 dB 1 KHz Measurement Range 30 dB to 130 dBAlarm Record Stores up to 30 records with high low thresholdsBrightness Setting Adjustable from 5 to 100 with 5 incrementsCurve Interface Update Every 0 5 secondsOverload Indication Overreporting and underreporting detectionThreshold Setting Minimum 0 0 dB Maximum 130 0 dBLanguage Switching Support Chinese English Style Mode Year month day time formatDate Clock Adjustable hibernation brightness and time settingsHibernation Setting Auto shutdown adjustable from 1 to 60 minutesBattery Built in 1500mAh 3 7V lithium batteryDimensions 183mm x 63mm x 28mmFeatures 1 Precise Measurements in a Wide Range The FNIRSI FDM02 delivers highly accurate readings within a measurement range of 30 dB to 130 dB making it versatile for both quiet and loud environments 2 Real Time Data RetentionCurve Recording Updates curve interfaces every 0 5 seconds for continuous tracking ensuring reliable monitoring in dynamic soundscapes 3 Customizable Brightness Settings Adjust screen brightness between 5 to 100 for user comfort in any lighting environment enabling long term usability 4 Dual A C Frequency Weighting Modes Supports both A and C w