Just installed the TST 507RV flow thru on my 40' 5th wheel. Simple process and the sensors connect to the monitor in about 3-5 minutes. I did notice when I needed to add air that it seemed to take longer to top off the tires to 105 cold psi. However not a deal breaker for me. So far so good.
Have to agree with customer service being great. Called them to check status of order and was informed they where back ordered and would ship in a week. They extended the warranty 6 months for the week delay.
The order arrived when they said it would.
