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Maybe it is, maybe it isn't. I just know that the TST 507 is well proven. Works great for us. As long as a system accurately reports psi and temp in a timely fashion it should serve you well. I just know the one I had before the TST didn't quite make it...way to many false alarms.
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Jeff & Sandi (and Teddy - 7lb Schnorkie)
2018 Montana HC 305RL / HW Progressive EMS
2015 RAM 3500 Laramie Longhorn Crew Cab 4x4 DRW / Demco Recon Hitch on RAM Puck Ball
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