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Sound Level meter  digital 3 1/2 digit    Model  dot 781
Digital multimeter dot 781 is 3 1/2 digit a compact portable precision instrument.
Features  Built in microphone, wide range
Display   3 1/2 digits LCD 1999 counts
Range Lo: 35 to 100 dB
Hi: 65 to 130 dB
Accuracy +/- 1.5% ( under reference conditions)
Frequency 31.5 to 8 KHz
Microphone 1/2 inch electric condenser type
Time weighting Fast 125 m S, slow 1 sec
Over range indication Display indicates 1
Measurement / Weight 210L X 55W X 32H in mm., 230 gms. Approx.
Extra Supplied with operating manual, carry case

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