You think you have water left, then the tap runs dry mid-use. This Bluetooth gauge tracks water leaving your tank through an inline sender and shows exact levels on your phone, so you can monitor usage and know what is left before it runs out. Great Prices for the best smart rv from Topargee. Topargee Bluetooth Fresh Water Tank Gauge w/ Adapter Fittings part number TG37FR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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