TX141-BV3

How do you replace the batteries

You open the door on the front of the sensor.

Need a replacement for the TX141V2 sensor for my w8611 clock. Which is the compatible model?

W8611 is not a valid part number.  You probably have a model W86111.  The proper sensor for the W86111 is the model TX141V3.  You may order it from us by using the link provided.

Do you have any that is compatible

Compatible with what?  We carry the TX141-BV3, and it can be found here:  https://techinstrument.com/products/la-crosse-tx141-bv3-temperature-sensor

Is this compatible with a 915 MHZ OMO-Tx29U transmitter

No, it is not.  The TX29U sensor was discontinued by La Crosse about 2 years ago.  This means that you are looking at purchasing a new system if you wish to continue to see the outdoor weather inside, on your weather station.

Need a Temperature Outdoor Sensor to replace mine. After 4 years of perfect readings, it now gives very erratic readings. As an example yesterday the actual temperature outside was in the low 90's and it was reading 158 degrees. It has been kept on our east facing covered patio well protected from sun and weather elements Do you have a replacement sensor for this one TX141-BV-2. Thank You.

The replacement for the TX141-BV2 is the TX141-BV3, which can be found here, on our website:  https://techinstrument.com/products/la-crosse-tx141-bv3-temperature-sensor

Need a temperature sensor to replace mine. Model number TX37U

We're sorry, but the TX37U has been discontinued and there are no more available.  This means that in order to obtain outdoor temperatures you will need to purchase a new weather station.