Have a modle ws-8035-it indoor unit and a tx29udth-it outdoor temp and humidty sensor changed batteries in both units and waited times in manual stil reads of.1for temp and humidty both inside and out.

Try removing all batteries, then reinstalling in the outdoor unit and waiting for it to start sending data before reinstalling batteries in the indoor unit. If you don't see data displayed on the indoor unit, the outdoor unit may have failed.

There are a couple of possibilities for the failure to transmit/receive outdoor data. First, resynch the two units. This will depend on the manufacturer. For some brands, you need to take the batteries out of both the indoor and outdoor units for 10 minutes. Then put the batteries into the devices with both side by side (working inside is easier). Wait until the outdoor data is displayed. There are some weather station systems where the outdoor unit isn't weather-proof. You may need to dry the outdoor unit for several days after removing the batteries before resynching it to indoor sensor.

If the data displays properly when the outdoor unit is inside, you may have the outdoor sensor too far away from the indoor unit. (The distance will depend on the number of walls and the composition of the wall studs/siding.) Try keeping the two units closer together.

If the outdoor data isn't displayed when the two units are side by side and the reset procedure doesn't work. One device has an internal malfunction (transmitter or receiver failed). It's probably best to replace the unit. If it is under warranty, contact the manufacturer.

I hope this helps. For specific details on resetting the indoor and outdoor units to synch them, please add a comment with the make/model of your weather station.

Cindy Wells
(I've seen Davis Weather stations damaged by a close lightning strike. The outdoor unit had to be replaced.)

Did you reset the sensors after replacing the batteries? Bring the sensor inside and close to the main unit. Replace batteries on both units. Use a thumb tack and stick it into small reset hole near battery compartment to reset both units. If that doesn't work, your sensor needs more troubleshooting or needs to be replaced.

The manual for the thermometer is available on the LaCrosse site: http://www.lacrossetechnology.com/7034twcit/index.php . The direct link is http://www.lacrossetechnology.com/7034twcit/manual.pdf .

Put the batteries in the remote(s) first. (If you need to reset the units, pull the batteries from the indoor temperature sensor and the remotes for 10 minutes before restarting.) With the remotes and indoor sensor 3 to 5 feet apart, put the batteries in the indoor temperature sensor. Then wait 10 minutes before pressing any buttons. Once you have confirmed communication between the units, then move the remotes to their final location (not more than 330 feet away minus 30 feet for external walls or windows and 20 feet for each internal wall between the units.)

I hope this helps.

Cindy Wells