Waste of Money. Quality of material and assembly is unacceptable. Uses 5 button batteries. Light switch doesn't work. Can't trust the gauge.Updated on January, 25After I posted my displeasure in review, I was contacted from the seller. She sincerely offered apologies and found the wrong item was sent by Amazon. The seller refunded full price and offered me a correct item for evaluation.I received yesterday and found it was not what I received before. As it was definitely Amazon's fault, I re-evaluate the product and revise my review score.This product uses two AAA batteries. The flash light and LED lights are bright enough to use where you don't have much light. It is very convinient. Tire pressure gauge showed reproducible reading in 10 trials of four tires. I am very happy with the accuracy. Also the pop-out window hammer is easy to activate. The weight of device is optimal for me.However, when I keep is in a original card board box, I found the display light was on when I reopen it. This is because the display button was easily pressed by outer objects. This needs to be improved.

Si me agragado el producto

I bought this product because it was recommended by a Scotty Kilmer, my mechanic. It must be a defect product. It came with its own batteries and it worked for about a week. The tire pressure, worked. Both of the LED and red light worked.I left it in my car after first uses. The next time I needed it. It wouldn�t turn on. I figured the original batteries must have died. Yes, the batteries were dead, but every three packages of four sets of batteries died after I put them in your product.This product is a defect because it drains the battery�s without even being used. I suppose it automatically turns off after turning on. But even then I push and hold the on button to it shuts down and even then the batteries are dead the next day. I let this go on for a few months to make sure I was not the problem or the batteries that I was buying were. I even brought it inside thinking it might be the heat training the batteries inside my car. But it�s still drain the batteries and wouldn�t turn on. I can no longer get a refund on this the only things that worked I think work are the window breaker and the seat cutter. I do not like the product i received if you receive one that works good for you.

I've got this in September 2020. It wasn't great from the start because it was draining the batteries even without use. I'd leave it in the car and after a couple of months when I'd try to check the tyre pressure I'd find the batteries dead. No probem, I'd replace the batteries and check the tyre pressure. Until last week when I wanted to check the pressure again, but this wouldn't work. The display is dead this time. I can still use the flashlight and the red light, but I can't check the tyre pressure as the display is not showing anything. I did try to reset it, turn it on and off, but no luck. Display faulty. Really poor quality item.

for my car tires i love it!