I am very satisfied with this tire sensor. I'm buying it for an ATV (it's under £5 for its tires!) and this sensor fits. Easy to use, easy to read (and even glows in the dark after a few seconds of exposure to light)! My other two low pressure gauges failed within a few weeks of purchase. After four months of using this gauge (I check the air pressure every time I ride the quad) this gauge still works. I keep it in its original packaging and bubble wrap in a bag that stays on the quad. I have highly recommended this gauge to all my ATV friends (as well as fat tire riders with low pressure tires). I am very happy that I bought this pressure gauge!