8. Glossary of Terms
Term
Definition
Accuracy
Hygrometer
Range
Absolute Barometric
Pressure
Relative Barometric
Pressure
HectoPascals (hPa)
Accuracy is defined as the ability of a measurement to match the actual
value of the quantity being measured.
A hygrometer is a device that measures relative humidity. Relative
humidity is a term used to describe the amount or percentage of water
vapor that exists in air.
Range is defined as the amount or extent a value can be measured.
Relative barometric pressure, corrected to sea-level. To compare
pressure conditions from one location to another, meteorologists correct
pressure to sea-level conditions. Because the air pressure decreases as
you rise in altitude, the sea-level corrected pressure (the pressure your
location would be at if located at sea-level) is generally higher than your
measured pressure.
Measured barometric pressure relative to your location or ambient
conditions.
Pressure units in SI (international system) units of measurement. Same
as millibars (1 hPa = 1 mbar)
Inches of Mercury (inHg) Pressure in Imperial units of measure.
1 inch of mercury = 33.86 millibars
9. Specifications
9.1 Wireless Specifications
•
Line of sight wireless transmission (in open air): 300 feet, 100 feet under most conditions.
• Frequency:
433
.92MHz
•
Update Rate: 60 seconds
Version 1.0
©Copyright 2014, Ambient LLC. All Rights Reserved.
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Receiver Frequency: 433 .92MHz
