SD Card real time data recorder SOUND LEVEL METER Model : SL-4023SD * Real time data recorder, save the data into the SD memory card and can be download to the ¡¡Excel, extra software is no need. * Meet IEC61672 class 2 * Auto range : 30 to 130 dB. * Manual range : 3 ranges 30 to 80 dB, 50 to 100 dB, 80 to 130 dB . * A/C frequency weighting. * Fast/slow time weighting, * Peak hold, Data hold. * Record (Max., Min.). * RS232/USB computer interface. * Optional wind shield ball, SB-01. * Patented. * Patent: Taiwan, China, Japan, Germany, USA pending.
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