Generally, we offer plc controller along with warranty service, within a limited period. Within the warranty period, if there is any quality problem due to poor workmanship or others caused by us, contact us. We offer return, replacement, as well as maintenance services. If the problems happen after the warranty expires or are caused by your improper use, you can also contact us. We will try our best to solve your problem, which is what our after-sales service is for.

Shenzhen Coolmay Technology Co., Ltd. is an experienced manufacturer with years of developing and producing plc input output modules. We are a recognized manufacturer in the industry. The plc module series is one of the main products of Coolmay. Some design deficiencies of Coolmay hmi 7 inch are overcome by the dedicated team. The pluggable terminals of Coolmay's PLC HMI All in one help users easily dismount the product. Each seaming joint is finely handled, and the seam force is strong because it keeps the same even I pull it or tear it. Said one of our customers. The power supply module has the functions of short circuit and overload protection.

we will always be dedicated to excellence in our work. Call now!