Prokit's Industries MT-1620 - Manual (Page 40)

sound level (dB).
NOTE:
 The Fast response is suitable to measure
sudden bursts and peak values from sound
source.
 Strong wind (over 10m/sec.) striking the
microphone call cause misreading for
measurement in windy locations, a windscreen
should be used in front of microphone.
4.22 ILLUMINANCE MEASURING
WARNING
To avoid damage to the meter, input plug can not
connect with any electric signal.
4.22.1 Set the transform switch at the Lux or
×10Lux range position.
4.22.2 Move the sensor in front of the meter to light
source in a horizontal position.
4.22.3 The ‘LCD’ display will show the illuminance
at the meter.
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