The digital phonometer SL4011 is a sound level meter realized to satisfy the features for acoustic detecting by security tecnicians according to IEC 651 type 2.
On the instrument it’s available a wide liquid crystals display for an easy and inmediate reading with sound intensity range from 30dB to 130dB according to the toning down curves in a frecuency field from 31.5 Hz to 8 KHz.
Other items of the instrument are: slow and fast measures, max.value storage and discharged bactery indication.
It’s avaible on the instrument a bipolar plug with voltage output to connect it to analyzers or external recorders.
The phonometer is built into a strong ABS case and fitted with an useful bag.


Weight 285 g
Absorbtion nearly 9 mA
Accuracy 0,1 dB
Accuracy (23 ± 5°C) (23 ± 5°C) ±1,5dB (Previous adjustement)
Display LCD 3 1/2 digits - height 18 mm
Electromagnetic compatibility - EMC 2014/30/EU
Frecuency 31,5Hz ÷ 8KHz
Measure range 30dB ÷ 130dB three ranges
Measures 255x70x28
Norms IEC 651/2
Output signals AC 0,5 Vrms Max; DC 0,3-1,3 VDC, su 600 Ohm
Power supply Batteries 9VDC
Relative humidity max 90 % - (0÷35°C)
Temperature 0-50°C
Tuning down curves A - C

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SL4011 IT  EN 
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