I usually respond untill 48 hours. We are working in Monday to Friday. If you are not satisfied, please kindly let us know. Your constructive advice will be our motion to revise and improve, thank you for your understanding. We will reply you within 24 hours.This item is in the category "Business & Industrial\Industrial Automation & Motion Controls\PLCs & HMIs\PLC Processors". The seller is "nanhai2020" and is located in this country: CN. This item can be shipped worldwide.