R134a Gas Air Conditioning Refill Refrigerant Gas Recharge Tool Automotive Air Conditioning Car R134a Cooling Refill Kit

It arrived packaged, whole, I received it, but I can't test it right now, thank you JUUMA, thank you to those who packed and sent it. In August 2026, I connected it, there's just a very large section without threads, I inserted the hose and pulled the fitting slightly towards myself and put it on, it shows one reading on the pressure gauge when the engine is not running and another when the engine is running, and I took photos and sent them to artificial intelligence, and it suggests whether there is freon in the system or not and what to do if there are problems with the air conditioner.

Very necessary in my work. Durable, I hope for long-term cooperation.