I've picked up a used TX63U-IT. Since it wouldn't work with my compatible system, I took it a part and the batteries do need to be changed. My other TX63U-IT is currently working, although I suspect it too needs the batteries changed for the signal is reduced, had to bring it closer to the thermo sensor.
Is there a way to shut off the currently running TX63U-IT once I change the batteries in the other one, or would it be a case where I would need to remove the batteries in the working one before I try and start up the other?
Thanks