If your RV tank monitor readings change from 25% to empty in the blink of an eye, that's a problem. SeeLeveL sensors track 3 holding tanks with single-digit accuracy at the monitor. Also displays your propane level and battery voltage. Great Prices for the best smart rv from SeeLeveL. SeeLeveL RV Holding Tank Monitoring System - Fresh, Gray, Black, Propane part number SE59VR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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