@Danman yes but I am waiting on my third unit hoping to get one that actually works. If you order one from Amazon right now there’s a very good chance that it is dead on arrival. That is straight from the manufacturer. They know that they have a large batch in the wild that they know are defective. They asked me not to return the second unit to Amazon and have sent me a third unit and a return label for the second unit. They basically power on and shut off after 30-60 seconds. They calibrate, but then reset and shut off. The company has been very polite and responsive and so I am going to give it another chance. I didn’t even buy it solely for the cant indicator. It has some great tools for finding your shooting errors and helping you with bench rest form. I can’t really shoot right now and thought this would be a good project to keep me occupied- not lol. The bad ones are not just at Amazon. One dealer posted that everyone unit in his inventory was defective when checked. Stuff happens, but the firearms and airgun industry just seem to operate on the “ignore it and it will go away” principle, hardly pro active the 250z comes to mind.