User manual
Version 1.0     ©Copyright 2013, Ambient LLC. All Rights Reserved.        Page 12 
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 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. 
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 
Channel 1-8 
Temperature 
-40 to 140 °F 
± 1 °F 
0.1 °F 
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 probe  sensor (use lithium batteries for  temperatures 
less than -4 °F) 
7  Troubleshooting Guide 
If your question is not answered here, you can contact us as follows: 
1.  Email Support: support@ambientweather.com 
2.  Live Chat Support: www.ambientweather.com/chat.html (M-F 8am to 4pm Arizona Time) 
3.  Technical Support: 480-283-1644 (M-F 8am to 4pm Arizona Time) 










