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Term
Thermometer
A thermometer is a device that measures temperature. Most digital thermometers are
resistive thermal devices (RTD). RTDs predict change in temperature as a function
of electrical resistance.
UV
An ultraviolet sensor (UV sensor) is a device that measures UV light from the Sun.
The UV index (UVI) is an international standard measurement of how strong the
ultraviolet (UV) radiation from the sun is at a particular place on a particular day. It
is a scale primarily used in daily forecasts aimed at the general public.
Its purpose is to help people to effectively protect themselves from UV light, of
which excessive exposure causes sunburns, eye damage such as cataracts, skin
aging, and skin cancer.
Wind Vane
A wind vane is a device that measures the direction of the wind. The wind vane is
usually combined with the anemometer. Wind direction is the direction from which
the wind is blowing.
6. Specifications
6.1 Wireless Specifications
Line of sight wireless transmission (in open air): 330 feet, 100 feet under most conditions
Update Rate: Outdoor Sensor: 16 seconds, Indoor Sensor: 64 seconds
Frequency: 915 MHz
6.2 Measurement Specifications
The following table provides the specifications for the measured parameters.
Measurement
Indoor Temperature
Outdoor Temperature
Indoor Humidity
Outdoor Humidity
Barometric Pressure
Light (solar radiation)
Rain
UV Index
Wind Direction
Wind Speed
6.3 Power Consumption
Outdoor sensor array: 3xAA alkaline batteries (not included)
Version 2.1
©Copyright 2019, Ambient LLC. All Rights Reserved.
Range
32 to 140 °F
-40 to 149 °F (lithium
batteries)
-4 to 140 °F (alkaline
batteries)
1 to 99%
1 to 99%
8.85 to 32.50 inHg
0 to 400,000 Lux
0 to 394 in.
0-15
0 - 360 º
0 to 100 mph (operational)
Definition
Accuracy
± 2 °F
± 2 °F
± 5%
± 5%
± 0.08 inHg (within range of
27.13 to 32.50 inHg)
± 15%
± 10%
± 1
1º
± 2.2 mph or 10% (whichever
is greater)
Resolution
0.1 °F
0.1 °F
1 %
1 %
0.01 inHg
1 Lux
0.01 in
1
1º
0.1 mph
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