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To calibrate temperature, we recommend a mercury or red spirit (fluid) thermometer. Bi-metal (dial)
and other digital thermometers are not a good source and have their own margin of error. Using a local
weather station in your area is also a poor source due to changes in location, timing (airport weather
stations are only updated once per hour) and possible calibration errors (many official weather stations
are not properly installed and calibrated).
Place the sensor in a shaded, controlled environment next to the fluid thermometer, and allow the
sensor to stabilize for 48 hours. Compare this temperature to the fluid thermometer and adjust the
console to match the fluid thermometer.
5
Glossary of Terms
Term
Definition
Accuracy
Accuracy is defined as the ability of a measurement to match the actual
value of the quantity being measured.
Hygrometer
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
Range is defined as the amount or extent a value can be measured.
6
Specifications
6.1 Wireless Specifications
Line of sight wireless transmission (in open air): 300 feet, 100 feet under most conditions.
Frequency: 433 MHz
Update Rate: 60 seconds
6.2 Measurement Specifications
The following table provides specifications for the measured parameters.
Measurement
Range
Accuracy
Resolution
Indoor Temperature
32 to 140 °F
± 1 °F
0.1 °F
Outdoor Temperature
-40 to 140 °F
± 1 °F
0.1 °F
Indoor Humidity
10 to 99 %
± 5% (only guaranteed
between 20 to 90%)
1 %
Outdoor Humidity
10 to 99%
± 5% (only guaranteed
between 20 to 90%)
1 %
6.3 Power Consumption
Base station (display console) : 4 x AAA 1.5V Alkaline or Lithium batteries (not included)
Remote sensor : 2 x AAA 1.5V Alkaline or Lithium batteries (not included)
Battery life: Minimum 12 months for base station with one sensor and excellent reception.
Intermittent reception and multiple sensors may reduce the battery life.
Minimum 12 months for thermometer-hygrometer sensor (use lithium batteries in cold
weather climates less than -4 °F)
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Troubleshooting Guide
If your question is not answered here, you can contact us as follows: