This item works but has no sensitivity adjustment. The only setting concerns the switch-on time. Inside the product, there is a spot on the circuit board for the sensitivity control, but it seems the manufacturer saved pennies and left it, plugging a hole in the case where it belongs. This is a serious deficiency. The product has a trigger that is triggered when the vehicle moves > 50 feet. Most competing products have this setting. I want to buy another product.
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