Oregon Scientific outside temperature sensor not working.

SOURCE: Oregon Scientific VR399 Handheld Digital

I have misplaced my driver also and my device is full of recordings I dont want to delete.

SOURCE: Wireless thermo clock not reading outside temp

I've had a similar problem with another model, an Oregon Scientific Model IWA-80055 Wireless Thermo Clock, in which when I replaced the batteries in the remote sensor, the clock would not read the temperature from the remote sensor.
I found it fairly consistent to solve this by taking a battery out of place in the clock and putting it back in.  Unfortunately this also messed up the clock's time and date.  This is also in the instructions catalogue for the device, check and see if yours gives a similar solution.

SOURCE: Does any body have a manual for the Oregon Scientific tp326pmr

www.retrevo.com/samples/Oregon-Scientific-manuals.html

copy and paste in your address bar

or

www.oregonscientificstore.com/oregon_scientific/.../faq.asp

SOURCE: Manual for oregon scientific rm313PNA

http://pdf.smithgear.com/RM313PNA.pdf

SOURCE: oregon scientific IWA 80055 Outside temp won't

I have the same unit (IWA-80055) and after not finding anything helpful on the net, I just messed with it until I got it fixed. Here's what to do:

1. Take the cover off the back of the remote sensor.

2. Set the chanel to ch.1. (I tried all three but only ch.1 worked for me).

3. Use several tools. (i.e. a stick, needle, what ever you can but you need two) and hold down the reset button on both the sensor and the clock. (at the same time.)

If done right, it should only take a few seconds to start.

The outside temp is delayed at first. Be patient.