Temperature+specification+-4degF+to+120degF

Problem
The WMR968 temperature specification is -4degF to 120degF. Is this the actual temperature measuring range?

Solution
No, the actual temperature measuring range is -58 degF to 158 degF. The -4degF to 120degF range specified in the Oregon Scientific manual is the range at which the +/- 2 degF accuracy is guaranteed. However, the sensor will measure outside this range.

Outside this specified range, the temperature accuracy degrades from +/- 2 degF to +/- 6 degF as a function of temperature.

For cold weather operation, it is recommended you install lithium back up batteries in the solar transmitters. To purchase lithuim batteries, please visit:

[|Energizer AA Lithium Battery (2-pack) - Batteries for Long Life and Cold Climates]

You will need one two-pack for each solar transmitter.