Dear Egon,
Those 3 different products are using different GUI software, I already shared to you via email, please check your email (also junk box).
In the same time, I offered you a good price for your next purchase, you can let me know when you want to buy again, then I can prepare the order for you.
Please always feel free to let me know if you have any questions about Purchasing, Programming, GUI design, you can contact with me via email chao@stone-hmi.com or WhatsApp 008613526285568 directly, have a good day!
Best Regards,
Chao Wu
Sales Manager
International Business Development Department
Beijing STONE Technology Co.,Ltd
http://stoneitech.com
Tel/WhatsApp/WeChat: 0086-13526285568 Email:chao@stone-hmi.com
Add: Room 1905, Building D, Yuanyang International Center, Chaoyang District, Beijing, China