I have the Carmtek but mine is the 8 digit model. It works well for us and we like it. The only issue is battery life. It seems like the most I get out of a set of batteries is 3 months; even if the unit is in storage. I contacted Carmtek and they said that was about right; depending on usage. I do not know how long the batteries in rvlock last.
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Scott & Alta
2017 Montana 3160RL, Legacy, Onan 5.5Kw, Solar
2022 F-450 Lariat Ultimate
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