Ambient Weather WS-1900A User Manual

Version 1.2 ©Copyright 2020, Ambient LLC. All Rights Reserved. Page 30
8.2 Measurement Specifications
The following table provides the specifications for the measured parameters.
Measurement
Range
Accuracy
Resolution
Indoor Temperature
14 to 140 °F
± 2 °F
0.1 °F
Outdoor Temperature
-40 to 149 °F (lithium batteries)
-23 to 140 °F (alkaline batteries)
± 2 °F
0.1 °F
Indoor Humidity
10 to 99%
± 5%
1 %
Outdoor Humidity
10 to 99%
± 5%
1 %
Barometric Pressure
8.85 to 32.50 inHg
± 0.08 inHg (within range of 27.13 to
32.50 inHg)
0.01 inHg
Light
0 to 200,000 Lux
± 15%
1 Lux
Rain
0 to 394 in.
± 5%
0.01 in
Wind Direction
0 - 360 º
± 10º
1º
Wind Speed
0 to 100 mph (operational)
± 2.2 mph or 10% (whichever is greater)
1.4 mph
Figure 29
8.3 Power Consumption
• Base station : 5V DC Adaptor (included), Power Consumption: 0.5 Watts
• Base station: 3 x AAA batteries (not included)
• Outdoor sensor array: 3xAA batteries (not included). The primary power source is the solar panel. The
batteries provide backup power when there is limited solar energy.
9. Maintenance
1. Clean the rain gauge once every 3 months. Rotate the funnel counter-clockwise and lift to expose the rain
gauge mechanism, and clean with a damp cloth. Remove any dirt, debris and insects. If bug infestation is an
issue, spray the array lightly with insecticide.
Figure 30
2. Clean the solar radiation sensor and solar panel every 3 months with damp cloth.
3. Replace batteries every 1-2 years. If left in too long, the batteries may leak due to environmental challenges.
In harsh environments, inspect the batteries every 3 months (when cleaning the solar panel).

Ambient Weather WS-1900A Specifications

General

Brand	Ambient Weather
Model	WS-1900A
Category	Weather Station
Language	English