I've had my TST 507 system for the past 8 years. I have the first generation flow thru sensors. I have a total of 12 flow thru sensor between my TV and camper. I haven't had any issues with them and customer service is great.
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2012 Silverado 3500HD|4x4|Crew Cab|long bed|Dually
2012 Montana 3750FL
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