路昌SL3113G噪音计|路昌SL3113G噪音计|路昌SL3113G噪音计
Green power, hybrid power, economic type SOUND LEVEL METER Model : SL-3113G * Power supply from generator ( battery is no need ) or DC 9V battery. * Meet IEC61672 class 2. * Auto range : 30 to 130 dB. * A frequency weighting. * Fast/slow time weighting. * Peak hold, Data hold. * Record ( Max., Min. ). * Economic type, easy operation. * Optional wind shield ball, SB-01. * Patented.