Sper Scientific 850069 Environmental Quality Meter w/Sound - Manual (Page 5)

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The Sper Scientific Environmental Quality
Meter with Sound 850069 is a 5-in-1
instrument that functions as a:

Sound-Level Meter
—measures sound
levels simulating the human ear using
the A Weighting and Fast Time
Weighting to meet the International
Electrotechnical Commission (IEC)
standards (61672, class 2).
 Light Meter
—measures light using an
exclusive photodiode and color-
correction-filter, light sensor. Meets the
Commission Internationale de
l’Eclairage (CIE) photopic standards.
 Anemometer
—measures wind-speed
using a low-friction, ball bearing wheel
design to provide exceptional accuracy.

Hygrometer
—measures relative
humidity using a high-precision
humidity sensor with fast response
time.

Thermometer
—measures temperature
using standard Type-K (NiCr-NiAl)
thermocouple input jack for all Type-K
probes (optionally available).
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