Works quite well. I bought this before a big trip, my wife and I took it to Blueridge Blvd. When traveling as a couple, it's important to keep an eye on tire pressure. So I bought this as a monitor. Holds a charge well. The automatic shutdown works after about 5 minutes of inactivity. Turns back on after motion is detected. Worked very well for the trip. Difficult to read in direct sunlight. Fairly sensitive to weather changes. Fog, heat, humidity, etc. So it's best to cover it up if left outside. Or just bring it inside for storage. The other day, about 4 months after purchasing it, I noticed that it doesn't come with a charge. After playing around with it for a few days I came to the conclusion that this LiPo battery is bad. I'm very good with electronics so I took it apart and looked for a replacement battery for the Revain and with a little "operation" I replaced the battery and all is well. I'm sure it's not the "norm" for this seller. Your buying experience may vary. Nonetheless, you give a great review.
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