I've been using an Alien 4x4 tire pressure gauge for three weeks and couldn't be happier. The construction is solid, with a durable rubber body. The pressure gauge is also very attractive and is supplied in a handy, durable nylon case. It's large enough to offer an easy-to-read 2-inch glow-in-the-dark display and small enough to easily fit in my Jeep's glove box. Its features include a long cable that makes it easier to read the information from the display and a 360-degree rotatable cartridge. I checked the sensor and confirmed its accuracy. I haven't used the sensor long enough to attest to its reliability, but it comes with a lifetime warranty. One final note...this is a 75psi gauge and while it's perfect for cars, it's not for use with some high pressure bike tires. But in the end it's a great product!