4
INTRODUCTION
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).
