I've been using the TST 507 since early summer of 2014 and haven't replaced any sensor batteries yet. Because I had the maximum pressure alarm settings on the 5th wheel set too low for a hot summer day on Texas Interstates, I've had the TST alert me of high tire pressure - believe me, you'll KNOW when it alerts you!!!
Rusty
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Rusty, Sandy, 2 Shelties (Coby & Callie) & Conner the Campground Cat
2016 Ram 3500 Longhorn Crew Cab 4x4 Dually, 385/900 Cummins, Aisin AS69RC, 4.10 axle, 39,100 GCWR, 30,050 trailer tow, B&W RVK3600
Current: 2014.5 DRV Mobile Suites 38RSSA #6972 - Previous: 2004 MS 36RE3 #1291
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