Cheap And Discounts Touch Screen Panel Glass for PanelView Plus 1250 2711P-K12C4A1 2711P-K12C4A2 Membrane Keypad Keyboard Switch with Touchscreen Wholesale. Buy Directly From Merchant Automations accessories Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.