User manual
Version 1.10 ©Copyright 2015, Ambient LLC. All Rights Reserved. Page 36
8.2 Measurement Specifications
The following table provides the specifications for the measured parameters.
Measurement
Range
Accuracy
Resolution
Indoor Temperature
32 to 140 °F
± 2 °F
0.1 °F
Outdoor Temperature
-40 to 149 °F sensor
-23 to 140 °F rechargeable
battery range (alkaline)
± 2 °F
0.1 °F
Indoor Humidity
1 to 99%
± 5%
1 %
Outdoor Humidity
1 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 400,000 Lux
± 15%
1 Lux
Rain
0 to 394 in.
± 10%
0.01 in
Wind Direction
0 - 360 º
1º
1º
Wind Speed
0 to 100 mph (operational)
± 2.2 mph or 10% (whichever
is greater)
0.1 mph
8.3 Power Consumption
ObserverIp Receiver : 5V DC Adaptor (included)
Indoor Thermo-hygrometer-barometer sensor : 2xAAA batteries (not included)
Outdoor sensor array: 3xAA alkaline rechargeable batteries (included)
9. Maintenance
1. Clean the rain gauge once every 3 months as follows. Reference Figure 36.
Step 1: Make a note of the current rain totals by referencing the calibration panel (reference
Section 5.9.5.1. You will need to re-enter these values after the calibration procedure it
complete.
Step 2: Pour water into the rain collector to moisturize the dirt inside rain bucket.
Step 3: Use an approximately 3 inch (80 mm) long cotton swab, and push the cotton tip
through the rain collector hole until is reaches the self emptying mechanism, and press until
the mechanism no longer rotates.
Step 4: Rotate the cotton swab back and forth, removing dirt from the tipping mechanism and
rain collector hole.
Step 5: Remove the cotton swab and flush with water to remove any remaining dirt.
Step 6: Re-enter the rain totals recorded in Step 1.










