1. When I connect my inflater to the tire, will it tell me how much pressure is left in the tire before I start inflating?
Yes. Just click the power button once and it will show the current pressure. Click it again, and it will start inflating.
2. Does this pump remember your previous preferences (psi and amount)?
Yes, it has a memory feature and it saves the previous preferences.
3. Can the unit be toggled from bar to psi?
Yes, long pressing the second button will switch the unit. There are 4 units: bar, KPA, psi, and kg/cm².
4. Does the product have any overheating protection? How will the battery performance be affected in extremely hot and cold environments?
The overheating protection will be triggered after the product works for ~ 20 min under a 77 ℉ environment. Extremely hot environments may cause the protection to occur earlier, while extremely cold environments may affect battery performance or prevent the product from turning on. It’s recommended to use it in environments above 32 ℉.